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

State before:
x y : Pos
⊢ x < y → x + 1 < y + 1
Tactic:
by_toNat
State after:
x y : Pos
⊢ y.toNat > x.toNat → y.toNat + 1 > x.toNat + 1

State before:
x y : Pos
⊢ y.toNat > x.toNat → y.toNat + 1 > x.toNat + 1
Tactic:
exact Nat.succ_lt_succ
State after:
no goals