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

State before:
x : Pos
⊢ x ^ 1 = x
Tactic:
by_toNat
State after:
x : Pos
⊢ x.toNat ^ 1 = x.toNat

State before:
x : Pos
⊢ x.toNat ^ 1 = x.toNat
Tactic:
exact Nat.pow_one ..
State after:
no goals