Theorem: Smt.Reconstruct.Arith.sumBounds₃ (Smt/Reconstruct/Arith/SumBounds/Lemmas.lean)

State before:
α : Type
inst✝ : LinearOrderedRing α
a b c d : α
⊢ a < b → c = d → a + c < b + d
Tactic:
intros h₁ h₂
State after:
α : Type
inst✝ : LinearOrderedRing α
a b c d : α
h₁ : a < b
h₂ : c = d
⊢ a + c < b + d

State before:
α : Type
inst✝ : LinearOrderedRing α
a b c d : α
h₁ : a < b
h₂ : c = d
⊢ a + c < b + d
Tactic:
rewrite [h₂]
State after:
α : Type
inst✝ : LinearOrderedRing α
a b c d : α
h₁ : a < b
h₂ : c = d
⊢ a + d < b + d

State before:
α : Type
inst✝ : LinearOrderedRing α
a b c d : α
h₁ : a < b
h₂ : c = d
⊢ a + d < b + d
Tactic:
exact add_lt_add_right h₁ d
State after:
no goals