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

State before:
x y : Pos
⊢ x < y → x ≠ y
Tactic:
by_toNat
State after:
x y : Pos
⊢ y.toNat > x.toNat → x.toNat ≠ y.toNat

State before:
x y : Pos
⊢ y.toNat > x.toNat → x.toNat ≠ y.toNat
Tactic:
exact Nat.ne_of_lt
State after:
no goals