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

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

State before:
x y : Pos
⊢ y.toNat ≥ x.toNat → x.toNat = y.toNat ∨ y.toNat > x.toNat
Tactic:
exact Nat.eq_or_lt_of_le
State after:
no goals