Theorem: Pos.lt_of_lt_of_le (Extra/Pos/Lemmas.lean)

State before:
x y z : Pos
⊢ x < y → y ≤ z → x < z
Tactic:
by_toNat
State after:
x y z : Pos
⊢ y.toNat > x.toNat → z.toNat ≥ y.toNat → z.toNat > x.toNat

State before:
x y z : Pos
⊢ y.toNat > x.toNat → z.toNat ≥ y.toNat → z.toNat > x.toNat
Tactic:
exact Nat.lt_of_lt_of_le
State after:
no goals