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[] | ['Pure.eq', 'AbelCoset.a_r_coset', 'Complete_Lattices.Union', 'Set.image'] | lemma a_r_coset_def':
fixes G (structure)
shows "H +> a \<equiv> \<Union>h\<in>H. {h \<oplus> a}" |
[] | ['Pure.eq', 'AbelCoset.a_l_coset', 'Complete_Lattices.Union', 'Set.image'] | lemma a_l_coset_def':
fixes G (structure)
shows "a <+ H \<equiv> \<Union>h\<in>H. {a \<oplus> h}" |
[] | ['Pure.eq', 'AbelCoset.A_RCOSETS', 'Complete_Lattices.Union', 'Set.image', 'Congruence.partial_object.carrier'] | lemma A_RCOSETS_def':
fixes G (structure)
shows "a_rcosets H \<equiv> \<Union>a\<in>carrier G. {H +> a}" |
[] | ['Pure.eq', 'AbelCoset.set_add', 'Complete_Lattices.Union', 'Set.image'] | lemma set_add_def':
fixes G (structure)
shows "H <+> K \<equiv> \<Union>h\<in>H. \<Union>k\<in>K. {h \<oplus> k}" |
[] | ['Pure.eq', 'AbelCoset.A_SET_INV', 'Complete_Lattices.Union', 'Set.image'] | lemma A_SET_INV_def':
fixes G (structure)
shows "a_set_inv H \<equiv> \<Union>h\<in>H. {\<ominus> h}" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.subset_eq', 'Congruence.partial_object.carrier', 'Set.member', 'HOL.eq', 'AbelCoset.a_r_coset', 'Ring.ring.add'] | lemma (in abelian_group) a_coset_add_assoc:
"[| M \<subseteq> carrier G; g \<in> carrier G; h \<in> carrier G |]
==> (M +> g) +> h = M +> (g \<oplus> h)" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.subset_eq', 'Congruence.partial_object.carrier', 'HOL.eq', 'AbelCoset.a_r_coset', 'Ring.ring.zero'] | lemma (in abelian_group) a_coset_add_zero [simp]:
"M \<subseteq> carrier G ==> M +> \<zero> = M" |
[] | ['Pure.imp', 'HOL.Trueprop', 'HOL.eq', 'AbelCoset.a_r_coset', 'Ring.ring.add', 'Ring.a_inv', 'Set.member', 'Congruence.partial_object.carrier', 'Set.subset_eq'] | lemma (in abelian_group) a_coset_add_inv1:
"[| M +> (x \<oplus> (\<ominus> y)) = M; x \<in> carrier G ; y \<in> carrier G;
M \<subseteq> carrier G |] ==> M +> x = M +> y" |
[] | ['Pure.imp', 'HOL.Trueprop', 'HOL.eq', 'AbelCoset.a_r_coset', 'Set.member', 'Congruence.partial_object.carrier', 'Set.subset_eq', 'Ring.ring.add', 'Ring.a_inv'] | lemma (in abelian_group) a_coset_add_inv2:
"[| M +> x = M +> y; x \<in> carrier G; y \<in> carrier G; M \<subseteq> carrier G |]
==> M +> (x \<oplus> (\<ominus> y)) = M" |
[] | ['Pure.imp', 'HOL.Trueprop', 'HOL.eq', 'AbelCoset.a_r_coset', 'Set.member', 'Congruence.partial_object.carrier', 'Group.subgroup', 'Ring.add_monoid'] | lemma (in abelian_group) a_coset_join1:
"[| H +> x = H; x \<in> carrier G; subgroup H (add_monoid G) |] ==> x \<in> H" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Group.subgroup', 'Ring.add_monoid', 'Set.member', 'Set.Bex'] | lemma (in abelian_group) a_solve_equation:
"\<lbrakk>subgroup H (add_monoid G); x \<in> H; y \<in> H\<rbrakk> \<Longrightarrow> \<exists>h\<in>H. y = h \<oplus> x" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.member', 'AbelCoset.a_r_coset', 'Congruence.partial_object.carrier', 'Group.subgroup', 'Ring.add_monoid', 'HOL.eq'] | lemma (in abelian_group) a_repr_independence:
"\<lbrakk> y \<in> H +> x; x \<in> carrier G; subgroup H (add_monoid G) \<rbrakk> \<Longrightarrow>
H +> x = H +> y" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.member', 'Congruence.partial_object.carrier', 'Group.subgroup', 'Ring.add_monoid', 'HOL.eq', 'AbelCoset.a_r_coset'] | lemma (in abelian_group) a_coset_join2:
"\<lbrakk>x \<in> carrier G; subgroup H (add_monoid G); x\<in>H\<rbrakk> \<Longrightarrow> H +> x = H" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.subset_eq', 'Congruence.partial_object.carrier', 'Set.member', 'AbelCoset.a_r_coset'] | lemma (in abelian_monoid) a_r_coset_subset_G:
"[| H \<subseteq> carrier G; x \<in> carrier G |] ==> H +> x \<subseteq> carrier G" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.member', 'Set.subset_eq', 'Congruence.partial_object.carrier', 'Ring.ring.add', 'AbelCoset.a_r_coset'] | lemma (in abelian_group) a_rcosI:
"[| h \<in> H; H \<subseteq> carrier G; x \<in> carrier G|] ==> h \<oplus> x \<in> H +> x" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.subset_eq', 'Congruence.partial_object.carrier', 'Set.member', 'AbelCoset.a_r_coset', 'AbelCoset.A_RCOSETS'] | lemma (in abelian_group) a_rcosetsI:
"\<lbrakk>H \<subseteq> carrier G; x \<in> carrier G\<rbrakk> \<Longrightarrow> H +> x \<in> a_rcosets H" |
[] | ['Pure.imp', 'HOL.Trueprop', 'HOL.eq', 'Ring.ring.add', 'Set.member', 'Congruence.partial_object.carrier', 'Ring.a_inv'] | lemma (in abelian_group) a_transpose_inv:
"[| x \<oplus> y = z; x \<in> carrier G; y \<in> carrier G; z \<in> carrier G |]
==> (\<ominus> x) \<oplus> z = y" |
[] | [''] | lemma (in additive_subgroup) is_additive_subgroup:
shows "additive_subgroup H G" |
[] | ['Group.subgroup', 'Ring.add_monoid'] | lemma additive_subgroupI:
fixes G (structure)
assumes a_subgroup: "subgroup H (add_monoid G)"
shows "additive_subgroup H G" |
[] | ['Set.subset_eq', 'Congruence.partial_object.carrier'] | lemma (in additive_subgroup) a_subset:
"H \<subseteq> carrier G" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.member', 'Ring.ring.add'] | lemma (in additive_subgroup) a_closed [intro, simp]:
"\<lbrakk>x \<in> H; y \<in> H\<rbrakk> \<Longrightarrow> x \<oplus> y \<in> H" |
[] | ['Set.member', 'Ring.ring.zero'] | lemma (in additive_subgroup) zero_closed [simp]:
"\<zero> \<in> H" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.member', 'Ring.a_inv'] | lemma (in additive_subgroup) a_inv_closed [intro,simp]:
"x \<in> H \<Longrightarrow> \<ominus> x \<in> H" |
[] | [''] | lemma (in abelian_subgroup) is_abelian_subgroup:
shows "abelian_subgroup H G" |
[] | ['Coset.normal', 'Ring.add_monoid', 'Pure.all'] | lemma abelian_subgroupI:
assumes a_normal: "normal H (add_monoid G)"
and a_comm: "!!x y. [| x \<in> carrier G; y \<in> carrier G |] ==> x \<oplus>\<^bsub>G\<^esub> y = y \<oplus>\<^bsub>G\<^esub> x"
shows "abelian_subgroup H G" |
[] | ['Group.comm_group', 'Ring.add_monoid', 'Group.subgroup'] | lemma abelian_subgroupI2:
fixes G (structure)
assumes a_comm_group: "comm_group (add_monoid G)"
and a_subgroup: "subgroup H (add_monoid G)"
shows "abelian_subgroup H G" |
[] | ['Ring.abelian_group'] | lemma abelian_subgroupI3:
fixes G (structure)
assumes "additive_subgroup H G"
and "abelian_group G"
shows "abelian_subgroup H G" |
[] | ['Set.Ball', 'Congruence.partial_object.carrier'] | lemma (in abelian_subgroup) a_coset_eq:
"(\<forall>x \<in> carrier G. H +> x = x <+ H)" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.member', 'Congruence.partial_object.carrier', 'Ring.ring.add', 'Ring.a_inv'] | lemma (in abelian_subgroup) a_inv_op_closed1:
shows "\<lbrakk>x \<in> carrier G; h \<in> H\<rbrakk> \<Longrightarrow> (\<ominus> x) \<oplus> h \<oplus> x \<in> H" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.member', 'Congruence.partial_object.carrier', 'Ring.ring.add', 'Ring.a_inv'] | lemma (in abelian_subgroup) a_inv_op_closed2:
shows "\<lbrakk>x \<in> carrier G; h \<in> H\<rbrakk> \<Longrightarrow> x \<oplus> h \<oplus> (\<ominus> x) \<in> H" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.subset_eq', 'Congruence.partial_object.carrier', 'Set.member', 'HOL.eq', 'AbelCoset.a_l_coset', 'Ring.ring.add'] | lemma (in abelian_group) a_lcos_m_assoc:
"\<lbrakk> M \<subseteq> carrier G; g \<in> carrier G; h \<in> carrier G \<rbrakk> \<Longrightarrow> g <+ (h <+ M) = (g \<oplus> h) <+ M" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.subset_eq', 'Congruence.partial_object.carrier', 'HOL.eq', 'AbelCoset.a_l_coset', 'Ring.ring.zero'] | lemma (in abelian_group) a_lcos_mult_one:
"M \<subseteq> carrier G ==> \<zero> <+ M = M" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.subset_eq', 'Congruence.partial_object.carrier', 'Set.member', 'AbelCoset.a_l_coset'] | lemma (in abelian_group) a_l_coset_subset_G:
"\<lbrakk> H \<subseteq> carrier G; x \<in> carrier G \<rbrakk> \<Longrightarrow> x <+ H \<subseteq> carrier G" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.member', 'AbelCoset.a_l_coset', 'Congruence.partial_object.carrier', 'Group.subgroup', 'Ring.add_monoid'] | lemma (in abelian_group) a_l_coset_swap:
"\<lbrakk>y \<in> x <+ H; x \<in> carrier G; subgroup H (add_monoid G)\<rbrakk> \<Longrightarrow> x \<in> y <+ H" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.member', 'AbelCoset.a_l_coset', 'Congruence.partial_object.carrier', 'Group.subgroup', 'Ring.add_monoid'] | lemma (in abelian_group) a_l_coset_carrier:
"[| y \<in> x <+ H; x \<in> carrier G; subgroup H (add_monoid G) |] ==> y \<in> carrier G" |
[] | ['Set.member', 'AbelCoset.a_l_coset', 'Congruence.partial_object.carrier', 'Group.subgroup', 'Ring.add_monoid', 'Set.subset_eq'] | lemma (in abelian_group) a_l_repr_imp_subset:
assumes "y \<in> x <+ H" "x \<in> carrier G" "subgroup H (add_monoid G)"
shows "y <+ H \<subseteq> x <+ H" |
[] | ['Set.member', 'AbelCoset.a_l_coset', 'Congruence.partial_object.carrier', 'Group.subgroup', 'Ring.add_monoid', 'HOL.eq'] | lemma (in abelian_group) a_l_repr_independence:
assumes y: "y \<in> x <+ H" and x: "x \<in> carrier G" and sb: "subgroup H (add_monoid G)"
shows "x <+ H = y <+ H" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.subset_eq', 'Congruence.partial_object.carrier', 'AbelCoset.set_add'] | lemma (in abelian_group) setadd_subset_G:
"\<lbrakk>H \<subseteq> carrier G; K \<subseteq> carrier G\<rbrakk> \<Longrightarrow> H <+> K \<subseteq> carrier G" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Group.subgroup', 'Ring.add_monoid', 'HOL.eq', 'AbelCoset.set_add'] | lemma (in abelian_group) subgroup_add_id: "subgroup H (add_monoid G) \<Longrightarrow> H <+> H = H" |
[] | ['Set.member', 'Congruence.partial_object.carrier', 'HOL.eq', 'AbelCoset.A_SET_INV', 'AbelCoset.a_r_coset', 'Ring.a_inv'] | lemma (in abelian_subgroup) a_rcos_inv:
assumes x: "x \<in> carrier G"
shows "a_set_inv (H +> x) = H +> (\<ominus> x)" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.subset_eq', 'Congruence.partial_object.carrier', 'Set.member', 'HOL.eq', 'AbelCoset.set_add', 'AbelCoset.a_r_coset'] | lemma (in abelian_group) a_setmult_rcos_assoc:
"\<lbrakk>H \<subseteq> carrier G; K \<subseteq> carrier G; x \<in> carrier G\<rbrakk>
\<Longrightarrow> H <+> (K +> x) = (H <+> K) +> x" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.subset_eq', 'Congruence.partial_object.carrier', 'Set.member', 'HOL.eq', 'AbelCoset.set_add', 'AbelCoset.a_r_coset', 'AbelCoset.a_l_coset'] | lemma (in abelian_group) a_rcos_assoc_lcos:
"\<lbrakk>H \<subseteq> carrier G; K \<subseteq> carrier G; x \<in> carrier G\<rbrakk>
\<Longrightarrow> (H +> x) <+> K = H <+> (x <+ K)" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.member', 'Congruence.partial_object.carrier', 'HOL.eq', 'AbelCoset.set_add', 'AbelCoset.a_r_coset', 'Ring.ring.add'] | lemma (in abelian_subgroup) a_rcos_sum:
"\<lbrakk>x \<in> carrier G; y \<in> carrier G\<rbrakk>
\<Longrightarrow> (H +> x) <+> (H +> y) = H +> (x \<oplus> y)" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.member', 'AbelCoset.A_RCOSETS', 'HOL.eq', 'AbelCoset.set_add'] | lemma (in abelian_subgroup) rcosets_add_eq:
"M \<in> a_rcosets H \<Longrightarrow> H <+> M = M"
\<comment> \<open>generalizes \<open>subgroup_mult_id\<close>\<close> |
[] | ['Equiv_Relations.equiv', 'Congruence.partial_object.carrier', 'AbelCoset.a_r_congruent'] | lemma (in abelian_subgroup) a_equiv_rcong:
shows "equiv (carrier G) (racong H)" |
[] | ['Set.member', 'Congruence.partial_object.carrier', 'HOL.eq', 'AbelCoset.a_l_coset', 'Relation.Image', 'AbelCoset.a_r_congruent', 'Set.insert', 'Set.empty'] | lemma (in abelian_subgroup) a_l_coset_eq_rcong:
assumes a: "a \<in> carrier G"
shows "a <+ H = racong H `` {a}" |
[] | ['Pure.imp', 'HOL.Trueprop', 'HOL.eq', 'Ring.ring.add', 'Set.member', 'Congruence.partial_object.carrier', 'Complete_Lattices.Union', 'Set.image'] | lemma (in abelian_subgroup) a_rcos_equation:
shows
"\<lbrakk>ha \<oplus> a = h \<oplus> b; a \<in> carrier G; b \<in> carrier G;
h \<in> H; ha \<in> H; hb \<in> H\<rbrakk>
\<Longrightarrow> hb \<oplus> a \<in> (\<Union>h\<in>H. {h \<oplus> b})" |
[] | ['Set.pairwise', 'Set.disjnt', 'AbelCoset.A_RCOSETS'] | lemma (in abelian_subgroup) a_rcos_disjoint: "pairwise disjnt (a_rcosets H)" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.member', 'Congruence.partial_object.carrier', 'AbelCoset.a_r_coset'] | lemma (in abelian_subgroup) a_rcos_self:
shows "x \<in> carrier G \<Longrightarrow> x \<in> H +> x" |
[] | ['HOL.eq', 'Complete_Lattices.Union', 'AbelCoset.A_RCOSETS', 'Congruence.partial_object.carrier'] | lemma (in abelian_subgroup) a_rcosets_part_G:
shows "\<Union>(a_rcosets H) = carrier G" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.member', 'AbelCoset.A_RCOSETS', 'Set.subset_eq', 'Congruence.partial_object.carrier', 'Finite_Set.finite'] | lemma (in abelian_subgroup) a_cosets_finite:
"\<lbrakk>c \<in> a_rcosets H; H \<subseteq> carrier G; finite (carrier G)\<rbrakk> \<Longrightarrow> finite c" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.member', 'AbelCoset.A_RCOSETS', 'Set.subset_eq', 'Congruence.partial_object.carrier', 'Finite_Set.finite', 'HOL.eq', 'Finite_Set.card'] | lemma (in abelian_group) a_card_cosets_equal:
"\<lbrakk>c \<in> a_rcosets H; H \<subseteq> carrier G; finite(carrier G)\<rbrakk>
\<Longrightarrow> card c = card H" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.subset_eq', 'AbelCoset.A_RCOSETS', 'Set.Pow', 'Congruence.partial_object.carrier'] | lemma (in abelian_group) rcosets_subset_PowG:
"additive_subgroup H G \<Longrightarrow> a_rcosets H \<subseteq> Pow(carrier G)" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Finite_Set.finite', 'Congruence.partial_object.carrier', 'HOL.eq', 'Groups.times_class.times', 'Finite_Set.card', 'AbelCoset.A_RCOSETS', 'Coset.order'] | theorem (in abelian_group) a_lagrange:
"\<lbrakk>finite(carrier G); additive_subgroup H G\<rbrakk>
\<Longrightarrow> card(a_rcosets H) * card(H) = order(G)" |
[] | ['Pure.eq', 'AbelCoset.A_FactGroup', 'Congruence.partial_object.partial_object_ext', 'AbelCoset.A_RCOSETS', 'Group.monoid.monoid_ext', 'AbelCoset.set_add', 'Product_Type.Unity'] | lemma A_FactGroup_def':
fixes G (structure)
shows "G A_Mod H \<equiv> \<lparr>carrier = a_rcosets\<^bsub>G\<^esub> H, mult = set_add G, one = H\<rparr>" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.member', 'AbelCoset.A_RCOSETS', 'AbelCoset.set_add'] | lemma (in abelian_subgroup) a_setmult_closed:
"\<lbrakk>K1 \<in> a_rcosets H; K2 \<in> a_rcosets H\<rbrakk> \<Longrightarrow> K1 <+> K2 \<in> a_rcosets H" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.member', 'AbelCoset.A_RCOSETS', 'AbelCoset.A_SET_INV'] | lemma (in abelian_subgroup) a_setinv_closed:
"K \<in> a_rcosets H \<Longrightarrow> a_set_inv K \<in> a_rcosets H" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.member', 'AbelCoset.A_RCOSETS', 'HOL.eq', 'AbelCoset.set_add'] | lemma (in abelian_subgroup) a_rcosets_assoc:
"\<lbrakk>M1 \<in> a_rcosets H; M2 \<in> a_rcosets H; M3 \<in> a_rcosets H\<rbrakk>
\<Longrightarrow> M1 <+> M2 <+> M3 = M1 <+> (M2 <+> M3)" |
[] | ['Set.member', 'AbelCoset.A_RCOSETS'] | lemma (in abelian_subgroup) a_subgroup_in_rcosets:
"H \<in> a_rcosets H" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.member', 'AbelCoset.A_RCOSETS', 'HOL.eq', 'AbelCoset.set_add', 'AbelCoset.A_SET_INV'] | lemma (in abelian_subgroup) a_rcosets_inv_mult_group_eq:
"M \<in> a_rcosets H \<Longrightarrow> a_set_inv M <+> M = H" |
[] | ['Group.group', 'AbelCoset.A_FactGroup'] | theorem (in abelian_subgroup) a_factorgroup_is_group:
"group (G A_Mod H)" |
[] | ['Group.comm_group', 'AbelCoset.A_FactGroup'] | theorem (in abelian_subgroup) a_factorgroup_is_comm_group: "comm_group (G A_Mod H)" |
[] | ['HOL.eq', 'Group.monoid.mult', 'AbelCoset.A_FactGroup', 'AbelCoset.set_add'] | lemma add_A_FactGroup [simp]: "X \<otimes>\<^bsub>(G A_Mod H)\<^esub> X' = X <+>\<^bsub>G\<^esub> X'" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.member', 'Congruence.partial_object.carrier', 'AbelCoset.A_FactGroup', 'HOL.eq', 'Group.m_inv', 'AbelCoset.A_SET_INV'] | lemma (in abelian_subgroup) a_inv_FactGroup:
"X \<in> carrier (G A_Mod H) \<Longrightarrow> inv\<^bsub>G A_Mod H\<^esub> X = a_set_inv X" |
[] | ['Set.member', 'Group.hom', 'Ring.add_monoid', 'AbelCoset.A_FactGroup'] | lemma (in abelian_subgroup) a_r_coset_hom_A_Mod:
"(\<lambda>a. H +> a) \<in> hom (add_monoid G) (G A_Mod H)" |
[] | ['HOL.eq', 'AbelCoset.a_kernel', 'Set.Collect'] | lemma a_kernel_def':
"a_kernel R S h = {x \<in> carrier R. h x = \<zero>\<^bsub>S\<^esub>}" |
[] | ['Ring.abelian_group', 'Group.group_hom', 'Ring.add_monoid', 'AbelCoset.abelian_group_hom'] | lemma abelian_group_homI:
assumes "abelian_group G"
assumes "abelian_group H"
assumes a_group_hom: "group_hom (add_monoid G)
(add_monoid H) h"
shows "abelian_group_hom G H h" |
[] | ['AbelCoset.abelian_group_hom'] | lemma (in abelian_group_hom) is_abelian_group_hom:
"abelian_group_hom G H h" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.member', 'Congruence.partial_object.carrier', 'HOL.eq', 'Ring.ring.add'] | lemma (in abelian_group_hom) hom_add [simp]:
"[| x \<in> carrier G; y \<in> carrier G |]
==> h (x \<oplus>\<^bsub>G\<^esub> y) = h x \<oplus>\<^bsub>H\<^esub> h y" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.member', 'Congruence.partial_object.carrier'] | lemma (in abelian_group_hom) hom_closed [simp]:
"x \<in> carrier G \<Longrightarrow> h x \<in> carrier H" |
[] | ['Set.member', 'Ring.ring.zero', 'Congruence.partial_object.carrier'] | lemma (in abelian_group_hom) zero_closed [simp]:
"h \<zero> \<in> carrier H" |
[] | ['HOL.eq', 'Ring.ring.zero'] | lemma (in abelian_group_hom) hom_zero [simp]:
"h \<zero> = \<zero>\<^bsub>H\<^esub>" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.member', 'Congruence.partial_object.carrier', 'Ring.a_inv'] | lemma (in abelian_group_hom) a_inv_closed [simp]:
"x \<in> carrier G ==> h (\<ominus>x) \<in> carrier H" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.member', 'Congruence.partial_object.carrier', 'HOL.eq', 'Ring.a_inv'] | lemma (in abelian_group_hom) hom_a_inv [simp]:
"x \<in> carrier G ==> h (\<ominus>x) = \<ominus>\<^bsub>H\<^esub> (h x)" |
[] | ['AbelCoset.a_kernel'] | lemma (in abelian_group_hom) additive_subgroup_a_kernel:
"additive_subgroup (a_kernel G H h) G" |
[] | ['AbelCoset.a_kernel'] | lemma (in abelian_group_hom) abelian_subgroup_a_kernel:
"abelian_subgroup (a_kernel G H h) G" |
[] | ['Set.member', 'Congruence.partial_object.carrier', 'AbelCoset.A_FactGroup', 'AbelCoset.a_kernel', 'HOL.not_equal', 'Set.empty'] | lemma (in abelian_group_hom) A_FactGroup_nonempty:
assumes X: "X \<in> carrier (G A_Mod a_kernel G H h)"
shows "X \<noteq> {}" |
[] | ['Set.member', 'Congruence.partial_object.carrier', 'AbelCoset.A_FactGroup', 'AbelCoset.a_kernel', 'Set.the_elem', 'Set.image'] | lemma (in abelian_group_hom) FactGroup_the_elem_mem:
assumes X: "X \<in> carrier (G A_Mod (a_kernel G H h))"
shows "the_elem (h`X) \<in> carrier H" |
[] | ['Set.member', 'Group.hom', 'AbelCoset.A_FactGroup', 'AbelCoset.a_kernel', 'Ring.add_monoid'] | lemma (in abelian_group_hom) A_FactGroup_hom:
"(\<lambda>X. the_elem (h`X)) \<in> hom (G A_Mod (a_kernel G H h))
(add_monoid H)" |
[] | ['Fun.inj_on', 'Congruence.partial_object.carrier', 'AbelCoset.A_FactGroup', 'AbelCoset.a_kernel'] | lemma (in abelian_group_hom) A_FactGroup_inj_on:
"inj_on (\<lambda>X. the_elem (h ` X)) (carrier (G A_Mod a_kernel G H h))" |
[] | ['HOL.eq', 'Set.image', 'Congruence.partial_object.carrier', 'AbelCoset.A_FactGroup', 'AbelCoset.a_kernel'] | lemma (in abelian_group_hom) A_FactGroup_onto:
assumes h: "h ` carrier G = carrier H"
shows "(\<lambda>X. the_elem (h ` X)) ` carrier (G A_Mod a_kernel G H h) = carrier H" |
[] | ['Pure.imp', 'HOL.Trueprop', 'HOL.eq', 'Set.image', 'Congruence.partial_object.carrier', 'Set.member', 'Group.iso', 'AbelCoset.A_FactGroup', 'AbelCoset.a_kernel', 'Ring.add_monoid'] | theorem (in abelian_group_hom) A_FactGroup_iso_set:
"h ` carrier G = carrier H
\<Longrightarrow> (\<lambda>X. the_elem (h`X)) \<in> iso (G A_Mod (a_kernel G H h)) (add_monoid H)" |
[] | ['Set.member', 'Congruence.partial_object.carrier'] | lemma (in additive_subgroup) a_Hcarr [simp]:
assumes hH: "h \<in> H"
shows "h \<in> carrier G" |
[] | ['Set.member', 'Congruence.partial_object.carrier', 'AbelCoset.a_r_coset'] | lemma (in abelian_subgroup) a_elemrcos_carrier:
assumes acarr: "a \<in> carrier G"
and a': "a' \<in> H +> a"
shows "a' \<in> carrier G" |
[] | ['Set.member', 'HOL.eq', 'AbelCoset.a_r_coset'] | lemma (in abelian_subgroup) a_rcos_const:
assumes hH: "h \<in> H"
shows "H +> h = H" |
[] | ['Set.member', 'Congruence.partial_object.carrier', 'AbelCoset.a_r_coset', 'Ring.ring.add', 'Ring.a_inv'] | lemma (in abelian_subgroup) a_rcos_module_imp:
assumes xcarr: "x \<in> carrier G"
and x'cos: "x' \<in> H +> x"
shows "(x' \<oplus> \<ominus>x) \<in> H" |
[] | ['Set.member', 'Congruence.partial_object.carrier', 'Ring.ring.add', 'Ring.a_inv', 'AbelCoset.a_r_coset'] | lemma (in abelian_subgroup) a_rcos_module_rev:
assumes "x \<in> carrier G" "x' \<in> carrier G"
and "(x' \<oplus> \<ominus>x) \<in> H"
shows "x' \<in> H +> x" |
[] | ['Set.member', 'Congruence.partial_object.carrier', 'HOL.eq', 'AbelCoset.a_r_coset', 'Ring.ring.add', 'Ring.a_inv'] | lemma (in abelian_subgroup) a_rcos_module:
assumes "x \<in> carrier G" "x' \<in> carrier G"
shows "(x' \<in> H +> x) = (x' \<oplus> \<ominus>x \<in> H)" |
[] | ['Ring.ring', 'Set.member', 'Congruence.partial_object.carrier', 'HOL.eq', 'AbelCoset.a_r_coset', 'Ring.a_minus'] | lemma (in abelian_subgroup) a_rcos_module_minus:
assumes "ring G"
assumes carr: "x \<in> carrier G" "x' \<in> carrier G"
shows "(x' \<in> H +> x) = (x' \<ominus> x \<in> H)" |
[] | ['Set.member', 'AbelCoset.a_r_coset', 'Congruence.partial_object.carrier', 'HOL.eq'] | lemma (in abelian_subgroup) a_repr_independence':
assumes "y \<in> H +> x" "x \<in> carrier G"
shows "H +> x = H +> y" |
[] | ['Set.member', 'Congruence.partial_object.carrier', 'HOL.eq', 'AbelCoset.a_r_coset'] | lemma (in abelian_subgroup) a_repr_independenceD:
assumes "y \<in> carrier G" "H +> x = H +> y"
shows "y \<in> H +> x" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.member', 'AbelCoset.A_RCOSETS', 'Set.subset_eq', 'Congruence.partial_object.carrier'] | lemma (in abelian_subgroup) a_rcosets_carrier:
"X \<in> a_rcosets H \<Longrightarrow> X \<subseteq> carrier G" |
[] | ['Set.subset_eq', 'Congruence.partial_object.carrier', 'AbelCoset.set_add'] | lemma (in abelian_monoid) set_add_closed:
assumes "A \<subseteq> carrier G" "B \<subseteq> carrier G"
shows "A <+> B \<subseteq> carrier G" |
[] | ['AbelCoset.set_add'] | lemma (in abelian_group) add_additive_subgroups:
assumes subH: "additive_subgroup H G"
and subK: "additive_subgroup K G"
shows "additive_subgroup (H <+> K) G" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.member', 'Bij.Bij', 'FuncSet.extensional'] | lemma Bij_imp_extensional: "f \<in> Bij S \<Longrightarrow> f \<in> extensional S" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.member', 'Bij.Bij', 'FuncSet.funcset'] | lemma Bij_imp_funcset: "f \<in> Bij S \<Longrightarrow> f \<in> S \<rightarrow> S" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.member', 'Bij.Bij', 'FuncSet.restrict'] | lemma restrict_inv_into_Bij: "f \<in> Bij S \<Longrightarrow> (\<lambda>x \<in> S. (inv_into S f) x) \<in> Bij S" |
[] | ['Set.member', 'FuncSet.restrict', 'Bij.Bij'] | lemma id_Bij: "(\<lambda>x\<in>S. x) \<in> Bij S " |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.member', 'Bij.Bij', 'FuncSet.compose'] | lemma compose_Bij: "\<lbrakk>x \<in> Bij S; y \<in> Bij S\<rbrakk> \<Longrightarrow> compose S x y \<in> Bij S" |
[] | ['Pure.imp', 'HOL.Trueprop', 'Set.member', 'Bij.Bij', 'HOL.eq', 'FuncSet.compose', 'FuncSet.restrict', 'Hilbert_Choice.inv_into'] | lemma Bij_compose_restrict_eq:
"f \<in> Bij S \<Longrightarrow> compose S (restrict (inv_into S f) S) f = (\<lambda>x\<in>S. x)" |
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