Theorem: Smt.Reconstruct.Arith.castLE (Smt/Reconstruct/Arith/MulPosNeg/Lemmas.lean)

State before:
α : Type
inst✝ : LinearOrderedRing α
a b c : α
⊢ ∀ {a b : ℤ}, a ≤ b → zToR a ≤ zToR b
Tactic:
simp
State after:
no goals