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:: A Tree of Execution of a Macroinstruction | |
:: by Artur Korni{\l}owicz | |
environ | |
vocabularies NUMBERS, ORDINAL1, RELAT_1, FUNCOP_1, FUNCT_1, CARD_1, WELLORD2, | |
XBOOLE_0, TARSKI, SUBSET_1, ZFMISC_1, WELLORD1, ORDINAL2, FINSEQ_2, | |
FINSEQ_1, TREES_1, TREES_2, NAT_1, XXREAL_0, ARYTM_3, ORDINAL4, GOBOARD5, | |
AMI_1, AMISTD_1, GLIB_000, AMISTD_2, AMISTD_3, PARTFUN1, EXTPRO_1, | |
QUANTAL1, MEMSTR_0; | |
notations TARSKI, XBOOLE_0, ZFMISC_1, SUBSET_1, CARD_1, ORDINAL1, ORDINAL2, | |
NUMBERS, XXREAL_0, XCMPLX_0, NAT_1, RELAT_1, FUNCT_1, PARTFUN1, FUNCT_2, | |
BINOP_1, WELLORD1, WELLORD2, FUNCOP_1, FINSEQ_1, FINSEQ_2, TREES_1, | |
TREES_2, VALUED_1, MEASURE6, STRUCT_0, MEMSTR_0, COMPOS_1, EXTPRO_1, | |
AMISTD_1; | |
constructors WELLORD2, BINOP_1, AMISTD_2, RELSET_1, TREES_2, PRE_POLY, | |
AMISTD_1, FUNCOP_1, DOMAIN_1, NUMBERS, TREES_3; | |
registrations RELAT_1, ORDINAL1, FUNCOP_1, XXREAL_0, CARD_1, MEMBERED, | |
FINSEQ_1, TREES_2, FINSEQ_6, VALUED_0, FINSEQ_2, CARD_5, TREES_1, | |
AMISTD_2, COMPOS_1, EXTPRO_1, MEASURE6; | |
requirements BOOLE, SUBSET, NUMERALS; | |
definitions RELAT_1, TARSKI, XBOOLE_0, FUNCT_1; | |
equalities FINSEQ_2, FUNCOP_1, AFINSQ_1, COMPOS_1, ORDINAL1; | |
expansions TARSKI, FUNCT_1; | |
theorems AMISTD_1, NAT_1, ORDINAL1, CARD_1, TREES_2, TREES_1, FINSEQ_1, | |
FUNCT_1, RELAT_1, FINSEQ_3, FINSEQ_5, TARSKI, CARD_5, FINSEQ_2, FUNCOP_1, | |
XXREAL_0, PARTFUN1, TREES_9, VALUED_1; | |
schemes TREES_2, NAT_1, HILBERT2, ORDINAL2, BINOP_1; | |
begin | |
reserve x, y, z, X for set, | |
m, n for Nat, | |
O for Ordinal, | |
R, S for Relation; | |
reserve | |
N for with_zero set, | |
S for | |
standard IC-Ins-separated non empty with_non-empty_values AMI-Struct over N, | |
L, l1 for Nat, | |
J for Instruction of S, | |
F for Subset of NAT; | |
:: LocSeq | |
definition | |
let N be with_zero set, | |
S be standard IC-Ins-separated | |
non empty with_non-empty_values AMI-Struct over N, M be Subset of NAT; | |
deffunc F(object) = canonical_isomorphism_of (RelIncl order_type_of | |
RelIncl M,RelIncl M).$1; | |
func LocSeq(M,S) -> Sequence of NAT means | |
:Def1: | |
dom it = card M & for m | |
being set st m in card M holds it.m = (canonical_isomorphism_of (RelIncl | |
order_type_of RelIncl M, RelIncl M).m); | |
existence | |
proof | |
consider f being Sequence such that | |
A1: dom f = card M and | |
A2: for A being Ordinal st A in card M holds f.A = F(A) from ORDINAL2: | |
sch 2; | |
f is NAT-valued | |
proof | |
let y be object; | |
assume y in rng f; | |
then consider x being object such that | |
A3: x in dom f & y = f.x by FUNCT_1:def 3; | |
reconsider x as set by TARSKI:1; | |
F(x) in NAT by ORDINAL1:def 12; | |
hence thesis by A1,A2,A3; | |
end; | |
then reconsider f as Sequence of NAT; | |
take f; | |
thus dom f = card M by A1; | |
let m be set; | |
assume m in card M; | |
hence thesis by A2; | |
end; | |
uniqueness | |
proof | |
let f, g be Sequence of NAT such that | |
A4: dom f = card M and | |
A5: for m being set st m in card M holds f.m = F(m) and | |
A6: dom g = card M and | |
A7: for m being set st m in card M holds g.m = F(m); | |
for x being object st x in dom f holds f.x = g.x | |
proof | |
let x be object such that | |
A8: x in dom f; | |
thus f.x = F(x) by A4,A5,A8 | |
.= g.x by A4,A7,A8; | |
end; | |
hence thesis by A4,A6; | |
end; | |
end; | |
theorem | |
F = {n} implies LocSeq(F,S) = 0 .--> n | |
proof | |
assume | |
A1: F = {n}; | |
then | |
A2: card F = {0} by CARD_1:30,49; | |
{n} c= omega | |
by ORDINAL1:def 12; | |
then | |
A3: canonical_isomorphism_of(RelIncl order_type_of RelIncl {n}, RelIncl { n} | |
).0 = (0 .--> n).0 by CARD_5:38 | |
.= n by FUNCOP_1:72; | |
A4: dom LocSeq(F,S) = card F by Def1; | |
A5: for a being object st a in dom LocSeq(F,S) holds (LocSeq(F,S)).a | |
= (0 .--> n ) . a | |
proof | |
let a be object; | |
assume | |
A6: a in dom LocSeq(F,S); | |
then | |
A7: a = 0 by A4,A2,TARSKI:def 1; | |
thus (LocSeq(F,S)).a = (canonical_isomorphism_of | |
(RelIncl order_type_of | |
RelIncl F, RelIncl F).a) by A4,A6,Def1 | |
.= (0 .--> n).a by A1,A3,A7,FUNCOP_1:72; | |
end; | |
thus thesis by A1,A4,A5,CARD_1:30,49; | |
end; | |
registration | |
let N be with_zero set, | |
S be standard IC-Ins-separated | |
non empty with_non-empty_values AMI-Struct over N, M be Subset of NAT; | |
cluster LocSeq(M,S) -> one-to-one; | |
coherence | |
proof | |
set f = LocSeq(M,S); | |
set C = canonical_isomorphism_of (RelIncl order_type_of RelIncl M,RelIncl | |
M); | |
let x1,x2 be object such that | |
A1: x1 in dom f & x2 in dom f and | |
A2: f.x1 = f.x2; | |
A3: dom f = card M by Def1; | |
then | |
A4: f.x1 = C.x1 & f.x2 = C.x2 by A1,Def1; | |
A5: card M c= order_type_of RelIncl M by CARD_5:39; | |
consider phi being Ordinal-Sequence such that | |
A6: phi = C and | |
A7: phi is increasing and | |
A8: dom phi = order_type_of RelIncl M and | |
rng phi = M by CARD_5:5; | |
phi is one-to-one by A7,CARD_5:11; | |
hence thesis by A1,A2,A3,A4,A6,A8,A5; | |
end; | |
end; | |
:: Tree of Execution | |
definition let N be with_zero set, | |
S be standard IC-Ins-separated | |
non empty with_non-empty_values AMI-Struct over N, | |
M be non empty preProgram of S; | |
func ExecTree(M) -> DecoratedTree of NAT means | |
:Def2: | |
it.{} = FirstLoc(M) & | |
for t being Element of dom it holds | |
succ t = { t^<*k*> where k is Nat: k in card NIC(M/.(it.t),it.t) } | |
& for m being Nat st m in card | |
NIC(M/.(it.t),it.t) holds it.(t^<*m*>) = (LocSeq(NIC(M/.(it.t),it.t),S)).m; | |
existence | |
proof | |
defpred S[Nat,Nat] means $1 in card NIC(M/.$2,$2); | |
reconsider n = FirstLoc(M) as Nat; | |
defpred P[set,Nat,set] means ex l being Nat | |
st l = $1 & ($2 in dom LocSeq(NIC(M/.l,l),S) implies | |
$3 = (LocSeq(NIC(M/.l,l),S)).$2) & | |
(not $2 in dom LocSeq(NIC(M/.l,l),S) implies $3 = 0); | |
set D = NAT; | |
A1: for x, y being Element of NAT ex z being Element of NAT st P[x,y,z] | |
proof | |
let x, y be Element of NAT; | |
reconsider z = (LocSeq(NIC(M/.x,x),S)).y as Element of NAT | |
by ORDINAL1:def 12; | |
per cases; | |
suppose | |
A2: y in dom LocSeq(NIC(M/.x,x),S); | |
take z; | |
thus thesis by A2; | |
end; | |
suppose | |
A3: not y in dom LocSeq(NIC(M/.x,x),S); | |
reconsider il = 0 as Element of NAT; | |
take il; | |
thus thesis by A3; | |
end; | |
end; | |
consider f be Function of [:D,NAT:],D such that | |
A4: for l,n being Element of NAT holds P[l,n,f.(l,n)] from BINOP_1:sch 3(A1); | |
A5: for d being Element of NAT, k1, k2 being Nat st k1 <= k2 & | |
S[k2,d] holds S[k1,d] | |
proof let d be Element of NAT, k1, k2 be Nat such that | |
A6: k1 <= k2 and | |
A7: S[k2,d]; | |
Segm k2 in card NIC(M/.d,d) by A7; | |
then Segm k1 in card NIC(M/.d,d) by A6,NAT_1:39,ORDINAL1:12; | |
hence thesis; | |
end; | |
reconsider n as Element of NAT; | |
consider T being DecoratedTree of NAT such that | |
A8: T.{} = n and | |
A9: for t being Element of dom T | |
holds succ t = { t^<*k*> where k is Nat: S[k,T.t]} & | |
for n being Nat st S[n,T.t] holds T.(t^ | |
<*n*>) = f.(T.t,n) from TREES_2:sch 10(A5); | |
take T; | |
thus T.{} = FirstLoc(M) by A8; | |
let t be Element of dom T; | |
thus | |
succ t ={ t^<*k*> where k is Nat: S[k,T.t]} by A9; | |
reconsider n = T.t as Element of NAT; | |
let m be Nat; | |
A10: m in NAT by ORDINAL1:def 12; | |
consider l being Nat such that | |
A11: l = n and | |
A12: m in dom LocSeq(NIC(M/.l,l),S) implies | |
f.(n,m)= (LocSeq(NIC(M/.l,l),S)).m and | |
not m in dom LocSeq(NIC(M/.l,l),S) implies f.(n,m) = 0 by A4,A10; | |
assume m in card NIC(M/.(T.t),T.t); | |
hence thesis by A9,A11,A12,Def1; | |
end; | |
uniqueness | |
proof | |
let T1,T2 be DecoratedTree of NAT such that | |
A13: T1.{} = FirstLoc(M) and | |
A14: for t being Element of dom T1 holds succ t = { t^<*k*> where k is | |
Nat: k in card NIC(M/.(T1.t),T1.t)} & for m being Nat st | |
m in card NIC(M/.(T1.t),T1.t) holds T1.(t^<*m*>) = | |
(LocSeq(NIC(M/.(T1.t),T1.t),S)).m and | |
A15: T2.{} = FirstLoc(M) and | |
A16: for t being Element of dom T2 holds succ t = { t^<*k*> where k is | |
Nat: k in card NIC(M/.(T2.t),T2.t)} & for m being Nat st | |
m in card NIC(M/.(T2.t),T2.t) holds T2.(t^<*m*>) = | |
(LocSeq(NIC(M/.(T2.t),T2.t),S)).m; | |
defpred P[Nat] means dom T1-level $1 = dom T2-level $1; | |
A17: for n being Nat st P[n] holds P[n+1] | |
proof | |
let n be Nat such that | |
A18: P[n]; | |
set U2 = { succ w where w is Element of dom T2 : len w = n }; | |
set U1 = { succ w where w is Element of dom T1 : len w = n }; | |
A19: dom T2-level n = {v where v is Element of dom T2: len v = n} by | |
TREES_2:def 6; | |
A20: dom T1-level n = {v where v is Element of dom T1: len v = n} by | |
TREES_2:def 6; | |
A21: union U1 = union U2 | |
proof | |
hereby | |
let a be object; | |
assume a in union U1; | |
then consider A being set such that | |
A22: a in A and | |
A23: A in U1 by TARSKI:def 4; | |
consider w being Element of dom T1 such that | |
A24: A = succ w and | |
A25: len w = n by A23; | |
w in dom T1-level n by A20,A25; | |
then consider v being Element of dom T2 such that | |
A26: w = v and | |
A27: len v = n by A18,A19; | |
A28: w = w|Seg len w by FINSEQ_3:49; | |
defpred R[Nat] means $1 <= len w & w|Seg $1 in dom T1 & v | |
|Seg $1 in dom T2 implies T1.(w|Seg $1) = T2.(w|Seg $1); | |
A29: for n being Nat st R[n] holds R[n+1] | |
proof | |
let n be Nat; | |
assume that | |
A30: R[n] and | |
A31: n+1 <= len w and | |
A32: w|Seg (n+1) in dom T1 and | |
A33: v|Seg (n+1) in dom T2; | |
set t1 = w|Seg n; | |
A34: 1 <= n+1 by NAT_1:11; | |
A35: len(w|Seg(n+1)) = n+1 by A31,FINSEQ_1:17; | |
then len(w|Seg(n+1)) in Seg(n+1) by A34,FINSEQ_1:1; | |
then | |
A36: w.(n+1) = (w|Seg(n+1)).len(w|Seg(n+1)) by A35,FUNCT_1:49; | |
n+1 in dom w by A31,A34,FINSEQ_3:25; | |
then | |
A37: w|Seg(n+1) = t1^<*(w|Seg(n+1)).len (w|Seg(n+1))*> by A36, | |
FINSEQ_5:10; | |
A38: n <= n+1 by NAT_1:11; | |
then | |
A39: Seg n c= Seg(n+1) by FINSEQ_1:5; | |
then v|Seg n = v|Seg(n+1)|Seg n by RELAT_1:74; | |
then | |
A40: v|Seg n is_a_prefix_of v|Seg(n+1) by TREES_1:def 1; | |
w|Seg n = w|Seg(n+1)|Seg n by A39,RELAT_1:74; | |
then w|Seg n is_a_prefix_of w|Seg(n+1) by TREES_1:def 1; | |
then reconsider t1 as Element of dom T1 by A32,TREES_1:20; | |
reconsider t2 = t1 as Element of dom T2 by A26,A33,A40,TREES_1:20; | |
A41: succ t1 = { t1^<*k*> where k is Nat: k in card NIC | |
(M/.(T1.t1),T1.t1)} by A14; | |
t1^<*(w|Seg(n+1)).len(w|Seg(n+1))*> in succ t1 by A32,A37, | |
TREES_2:12; | |
then consider k being Nat such that | |
A42: t1^<*(w|Seg(n+1)).len(w|Seg(n+1))*> = t1^<*k*> and | |
A43: k in card NIC(M/.(T1.t1),T1.t1) by A41; | |
A44: (w|Seg(n+1)).len(w|Seg(n+1)) in card NIC(M/.(T2.t2),T2.t2) | |
by A30,A31,A33,A38,A40,A42,A43,FINSEQ_2:17,TREES_1:20,XXREAL_0:2; | |
k = (w|Seg(n+1)).len(w|Seg(n+1)) by A42,FINSEQ_2:17; | |
hence | |
T1.(w|Seg(n+1)) = (LocSeq(NIC(M/.(T1.t1),T1.t1),S)).((w|Seg(n+1 | |
)).len (w|Seg(n+1))) by A14,A37,A43 | |
.= T2.(w|Seg(n+1)) by A16,A30,A31,A33,A38,A40,A37,A44, | |
TREES_1:20,XXREAL_0:2; | |
end; | |
A45: R[0] by A13,A15; | |
for n being Nat holds R[n] from NAT_1:sch 2(A45,A29); | |
then | |
A46: T1.w = T2.w by A26,A28; | |
A47: succ v in U2 by A27; | |
succ v = {v^<*k*> where k is Nat: | |
k in card NIC(M/.(T2.v),T2.v)} & | |
succ w = {w^<*k*> where k is Nat: | |
k in card NIC(M/.(T1.w),T1.w)} by A14,A16; | |
hence a in union U2 by A22,A24,A26,A46,A47,TARSKI:def 4; | |
end; | |
let a be object; | |
assume a in union U2; | |
then consider A being set such that | |
A48: a in A and | |
A49: A in U2 by TARSKI:def 4; | |
consider w being Element of dom T2 such that | |
A50: A = succ w and | |
A51: len w = n by A49; | |
w in dom T2-level n by A19,A51; | |
then consider v being Element of dom T1 such that | |
A52: w = v and | |
A53: len v = n by A18,A20; | |
A54: w = w|Seg len w by FINSEQ_3:49; | |
defpred R[Nat] means $1 <= len w & w|Seg $1 in dom T1 & v| | |
Seg $1 in dom T2 implies T1.(w|Seg $1) = T2.(w|Seg $1); | |
A55: for n being Nat st R[n] holds R[n+1] | |
proof | |
let n be Nat; | |
assume that | |
A56: R[n] and | |
A57: n+1 <= len w and | |
A58: w|Seg (n+1) in dom T1 and | |
A59: v|Seg (n+1) in dom T2; | |
set t1 = w|Seg n; | |
A60: 1 <= n+1 by NAT_1:11; | |
A61: len(w|Seg(n+1)) = n+1 by A57,FINSEQ_1:17; | |
then len(w|Seg(n+1)) in Seg(n+1) by A60,FINSEQ_1:1; | |
then | |
A62: w.(n+1) = (w|Seg(n+1)).len(w|Seg(n+1)) by A61,FUNCT_1:49; | |
n+1 in dom w by A57,A60,FINSEQ_3:25; | |
then | |
A63: w|Seg(n+1) = t1^<*(w|Seg(n+1)).len (w|Seg(n+1))*> by A62,FINSEQ_5:10; | |
A64: n <= n+1 by NAT_1:11; | |
then | |
A65: Seg n c= Seg(n+1) by FINSEQ_1:5; | |
then v|Seg n = v|Seg(n+1)|Seg n by RELAT_1:74; | |
then | |
A66: v|Seg n is_a_prefix_of v|Seg(n+1) by TREES_1:def 1; | |
w|Seg n = w|Seg(n+1)|Seg n by A65,RELAT_1:74; | |
then w|Seg n is_a_prefix_of w|Seg(n+1) by TREES_1:def 1; | |
then reconsider t1 as Element of dom T1 by A58,TREES_1:20; | |
reconsider t2 = t1 as Element of dom T2 by A52,A59,A66,TREES_1:20; | |
A67: succ t1 = { t1^<*k*> where k is Nat: k in card NIC( | |
M/.(T1.t1),T1.t1)} by A14; | |
t1^<*(w|Seg(n+1)).len(w|Seg(n+1))*> in succ t1 by A58,A63, | |
TREES_2:12; | |
then consider k being Nat such that | |
A68: t1^<*(w|Seg(n+1)).len(w|Seg(n+1))*> = t1^<*k*> and | |
A69: k in card NIC(M/.(T1.t1),T1.t1) by A67; | |
A70: (w|Seg(n+1)).len(w|Seg(n+1)) in card NIC(M/.(T2.t2),T2.t2) by A56,A57 | |
,A59,A64,A66,A68,A69,FINSEQ_2:17,TREES_1:20,XXREAL_0:2; | |
k = (w|Seg(n+1)).len(w|Seg(n+1)) by A68,FINSEQ_2:17; | |
hence | |
T1.(w|Seg(n+1)) = (LocSeq(NIC(M/.(T1.t1),T1.t1),S)).((w|Seg(n+1)) | |
.len(w|Seg(n+1))) by A14,A63,A69 | |
.= T2.(w|Seg(n+1)) by A16,A56,A57,A59,A64,A66,A63,A70, | |
TREES_1:20,XXREAL_0:2; | |
end; | |
A71: R[0] by A13,A15; | |
for n being Nat holds R[n] from NAT_1:sch 2(A71,A55); | |
then | |
A72: T1.w = T2.w by A52,A54; | |
A73: succ v in U1 by A53; | |
succ v = {v^<*k*> where k is Nat: | |
k in card NIC(M/.(T1.v),T1.v)} & | |
succ w = {w^<*k*> where k is Nat: | |
k in card NIC(M/.(T2.w),T2.w)} by A14,A16; | |
hence thesis by A48,A50,A52,A72,A73,TARSKI:def 4; | |
end; | |
dom T1-level (n+1) = union U1 by TREES_9:45; | |
hence thesis by A21,TREES_9:45; | |
end; | |
dom T1-level 0 = {{}} by TREES_9:44 | |
.= dom T2-level 0 by TREES_9:44; | |
then | |
A74: P[0]; | |
A75: for n being Nat holds P[n] from NAT_1:sch 2(A74,A17); | |
for p being FinSequence of NAT st p in dom T1 holds (T1 qua Function | |
).p = (T2 qua Function).p | |
proof | |
let p be FinSequence of NAT; | |
defpred P[Nat] means $1 <= len p & p|Seg $1 in dom T1 implies | |
T1.(p|Seg $1) = T2.(p|Seg $1); | |
A76: p|Seg len p = p by FINSEQ_3:49; | |
A77: for n being Nat st P[n] holds P[n+1] | |
proof | |
let n be Nat; | |
assume that | |
A78: P[n] and | |
A79: n+1 <= len p and | |
A80: p|Seg (n+1) in dom T1; | |
set t1 = p|Seg n; | |
A81: 1 <= n+1 by NAT_1:11; | |
A82: len(p|Seg(n+1)) = n+1 by A79,FINSEQ_1:17; | |
then len(p|Seg(n+1)) in Seg(n+1) by A81,FINSEQ_1:1; | |
then | |
A83: p.(n+1) = (p|Seg(n+1)).len(p|Seg(n+1)) by A82,FUNCT_1:49; | |
n+1 in dom p by A79,A81,FINSEQ_3:25; | |
then | |
A84: p|Seg(n+1) = t1^<*(p|Seg(n+1)).len (p|Seg(n+1))*> by A83,FINSEQ_5:10; | |
A85: n <= n+1 by NAT_1:11; | |
then Seg n c= Seg(n+1) by FINSEQ_1:5; | |
then p|Seg n = p|Seg(n+1)|Seg n by RELAT_1:74; | |
then p|Seg n is_a_prefix_of p|Seg(n+1) by TREES_1:def 1; | |
then reconsider t1 as Element of dom T1 by A80,TREES_1:20; | |
reconsider t2 = t1 as Element of dom T2 by A75,TREES_2:38; | |
A86: succ t1 = { t1^<*k*> where k is Nat: | |
k in card NIC(M/.(T1.t1),T1.t1)} by A14; | |
t1^<*(p|Seg(n+1)).len (p|Seg(n+1))*> in succ t1 by A80,A84, | |
TREES_2:12; | |
then consider k being Nat such that | |
A87: t1^<*(p|Seg(n+1)).len (p|Seg(n+1))*> = t1^<*k*> and | |
A88: k in card NIC(M/.(T1.t1),T1.t1) by A86; | |
A89: (p|Seg(n+1)).len (p|Seg(n+1)) in card NIC(M/.(T2.t2),T2.t2) by A78,A79 | |
,A85,A87,A88,FINSEQ_2:17,XXREAL_0:2; | |
k = (p|Seg(n+1)).len (p|Seg(n+1)) by A87,FINSEQ_2:17; | |
hence | |
T1.(p|Seg (n+1)) = (LocSeq(NIC(M/.(T1.t1),T1.t1),S)).((p|Seg(n+1)). | |
len (p|Seg(n+1))) by A14,A84,A88 | |
.= T2.(p|Seg (n+1)) by A16,A78,A79,A85,A84,A89,XXREAL_0:2; | |
end; | |
A90: P[0] by A13,A15; | |
for n being Nat holds P[n] from NAT_1:sch 2(A90,A77); | |
hence thesis by A76; | |
end; | |
hence thesis by A75,TREES_2:31,38; | |
end; | |
end; | |
theorem | |
for S being standard halting IC-Ins-separated | |
non empty with_non-empty_values AMI-Struct over N holds ExecTree Stop S = | |
TrivialInfiniteTree --> 0 | |
proof | |
set D = TrivialInfiniteTree; | |
let S be standard halting IC-Ins-separated non empty | |
with_non-empty_values AMI-Struct over N; | |
set M = Stop S; | |
set E = ExecTree M; | |
defpred R[set] means E.$1 in dom M; | |
defpred X[Nat] means dom E-level $1 = D-level $1; | |
A2: M.0 = halt S by FUNCOP_1:72; | |
A3: for t being Element of dom E holds card NIC(halt S,E.t) = {0} | |
proof | |
let t be Element of dom E; | |
reconsider Et = E.t as Nat; | |
NIC(halt S,Et) = {Et} by AMISTD_1:2; | |
hence thesis by CARD_1:30,49; | |
end; | |
A4: for f being Element of dom E st R[f] | |
for a being Element of NAT st f^<*a*> in dom E holds R[f^<*a*>] | |
proof | |
let f be Element of dom E such that | |
A5: R[f]; | |
A6: M/.(E.f) = M.(E.f) by A5,PARTFUN1:def 6; | |
reconsider Ef = E.f as Nat; | |
A7: E.f = 0 by A5,TARSKI:def 1; | |
then NIC(halt S,E.f) = {0} by AMISTD_1:2; | |
then canonical_isomorphism_of (RelIncl order_type_of RelIncl | |
NIC(M/.(E.f),E.f), RelIncl NIC(M/.(E.f),E.f)) | |
= 0 .--> Ef | |
by A2,A7,A6,CARD_5:38; | |
then | |
A8: canonical_isomorphism_of (RelIncl order_type_of RelIncl | |
NIC(M/.(E.f),E.f), RelIncl NIC(M/.(E.f),E.f)).0 | |
= Ef by FUNCOP_1:72 | |
.= 0 by A5,TARSKI:def 1; | |
A9: card NIC(halt S,E.f) = {0} by A3; | |
then | |
A10: 0 in card NIC(M/.(E.f),E.f) by A2,A7,A6,TARSKI:def 1; | |
A11: succ f = { f^<*k*> where k is Nat: k in card NIC(M/.(E.f) | |
,E.f) } by Def2; | |
A12: succ f = { f^<*0*> } | |
proof | |
hereby | |
let s be object; | |
assume s in succ f; | |
then consider k being Nat such that | |
A13: s = f^<*k*> and | |
A14: k in card NIC(M/.(E.f),E.f) by A11; | |
k = 0 by A2,A9,A7,A6,A14,TARSKI:def 1; | |
hence s in { f^<*0*> } by A13,TARSKI:def 1; | |
end; | |
let s be object; | |
assume s in { f^<*0*> }; | |
then s = f^<*0*> by TARSKI:def 1; | |
hence thesis by A11,A10; | |
end; | |
let a be Element of NAT; | |
assume f^<*a*> in dom E; | |
then f^<*a*> in succ f by TREES_2:12; | |
then f^<*a*> = f^<*0*> by A12,TARSKI:def 1; | |
then E.(f^<*a*>) = (LocSeq(NIC(M/.(E.f),E.f),S)).0 by A10,Def2 | |
.= 0 by A10,A8,Def1; | |
hence thesis by TARSKI:def 1; | |
end; | |
E.{} = FirstLoc(M) by Def2; | |
then | |
A15: R[<*>NAT] by VALUED_1:33; | |
A16: for f being Element of dom E holds R[f] from HILBERT2:sch 1(A15,A4); | |
A17: for x being object st x in dom E holds (E qua Function).x = 0 | |
proof | |
let x be object; | |
assume x in dom E; | |
then reconsider x as Element of dom E; | |
E.x in dom M by A16; | |
hence thesis by TARSKI:def 1; | |
end; | |
A18: for n being Nat st X[n] holds X[n+1] | |
proof | |
let n be Nat; | |
set f0 = n |-> 0; | |
set f1 = (n+1) |-> 0; | |
A19: dom E-level (n+1) = {w where w is Element of dom E: len w = n+1} by | |
TREES_2:def 6; | |
A20: len f1 = n+1 by CARD_1:def 7; | |
assume | |
A21: X[n]; | |
dom E-level (n+1) = {f1} | |
proof | |
hereby | |
let a be object; | |
assume a in dom E-level (n+1); | |
then consider t1 being Element of dom E such that | |
A22: a = t1 and | |
A23: len t1 = n+1 by A19; | |
reconsider t0 = t1|Seg n as Element of dom E by RELAT_1:59,TREES_1:20; | |
A24: succ t0 = { t0^<*k*> where k is Nat: | |
k in card NIC(M/.(E.t0),E.t0) } by Def2; | |
E.t0 in dom M by A16; | |
then | |
A25: E.t0 = 0 by TARSKI:def 1; | |
A26: card NIC(halt S,E.t0) = {0} & M/.(E.t0) = M.(E.t0) by A3,A16, | |
PARTFUN1:def 6; | |
then | |
A27: 0 in card NIC(M/.(E.t0),E.t0) by A2,A25,TARSKI:def 1; | |
A28: succ t0 = { t0^<*0*> } | |
proof | |
hereby | |
let s be object; | |
assume s in succ t0; | |
then consider k being Nat such that | |
A29: s = t0^<*k*> and | |
A30: k in card NIC(M/.(E.t0),E.t0) by A24; | |
k = 0 by A2,A25,A26,A30,TARSKI:def 1; | |
hence s in { t0^<*0*> } by A29,TARSKI:def 1; | |
end; | |
let s be object; | |
assume s in { t0^<*0*> }; | |
then s = t0^<*0*> by TARSKI:def 1; | |
hence thesis by A24,A27; | |
end; | |
t1.(n+1) is Nat & t1 = t0^<*t1.(n+1)*> by A23,FINSEQ_3:55; | |
then t0^<*t1.(n+1)*> in succ t0 by TREES_2:12; | |
then | |
A31: t0^<*t1.(n+1)*> = t0^<*0*> by A28,TARSKI:def 1; | |
A32: n in NAT by ORDINAL1:def 12; | |
n <= n+1 by NAT_1:11; | |
then Seg n c= Seg(n+1) by FINSEQ_1:5; | |
then Seg n c= dom t1 by A23,FINSEQ_1:def 3; | |
then dom t0 = Seg n by RELAT_1:62; | |
then dom E-level n = {w where w is Element of dom E: len w = n} & len | |
t0 = n by FINSEQ_1:def 3,TREES_2:def 6,A32; | |
then | |
A33: t0 in dom E-level n; | |
A34: dom E-level n = {f0} by A21,TREES_2:39; | |
for k being Nat st 1 <= k & k <= len t1 holds t1.k = f1.k | |
proof | |
let k be Nat; | |
assume 1 <= k & k <= len t1; | |
then | |
A35: k in Seg(n+1) by A23,FINSEQ_1:1; | |
now | |
per cases by A35,FINSEQ_2:7; | |
suppose | |
A36: k in Seg n; | |
hence t1.k = t0.k by FUNCT_1:49 | |
.= f0.k by A34,A33,TARSKI:def 1 | |
.= 0 by A36,FUNCOP_1:7; | |
end; | |
suppose | |
k = n+1; | |
hence t1.k = 0 by A31,FINSEQ_2:17; | |
end; | |
end; | |
hence thesis by A35,FUNCOP_1:7; | |
end; | |
then t1 = f1 by A20,A23,FINSEQ_1:14; | |
hence a in {f1} by A22,TARSKI:def 1; | |
end; | |
defpred P[Nat] means $1 |-> 0 in dom E; | |
let a be object; | |
A37: for n being Nat st P[n] holds P[n+1] | |
proof | |
let n be Nat; | |
assume P[n]; | |
then reconsider t = n |-> 0 as Element of dom E; | |
A38: succ t = { t^<*k*> where k is Nat: | |
k in card NIC(M/.(E.t),E.t) } by Def2; | |
E.t in dom M by A16; | |
then | |
A39: E.t = 0 by TARSKI:def 1; | |
card NIC(halt S,E.t) = {0} & M/.(E.t) = M.(E.t) | |
by A3,A16,PARTFUN1:def 6; | |
then 0 in card NIC(M/.(E.t),E.t) by A2,A39,TARSKI:def 1; | |
then t^<*0*> in succ t by A38; | |
then t^<*0*> in dom E; | |
hence thesis by FINSEQ_2:60; | |
end; | |
A40: P[0] by TREES_1:22; | |
for n being Nat holds P[n] from NAT_1:sch 2(A40,A37); | |
then | |
A41: f1 is Element of dom E; | |
assume a in {f1}; | |
then a = f1 by TARSKI:def 1; | |
hence thesis by A19,A20,A41; | |
end; | |
hence thesis by TREES_2:39; | |
end; | |
dom E-level 0 = {{}} by TREES_9:44 | |
.= D-level 0 by TREES_9:44; | |
then | |
A42: X[0]; | |
for x being Nat holds X[x] from NAT_1:sch 2(A42,A18); | |
then dom E = D by TREES_2:38; | |
hence thesis by A17,FUNCOP_1:11; | |
end; | |