| ⊦ ∅ ++ (∅ ++ a ++ b).min ++ (∅ ++ a ++ b).butmin.min = ∅ ++ a ++ b, a = b |
Used simplifier rules: min-two-01: ⊦ a < b → (∅ ++ b ++ a).min = a;%bmin-two-02: ⊦ a < b → (∅ ++ b ++ a).butmin = ∅ ++ b;%min-one: ⊦ (∅ ++ a).min = a;%min-two: ⊦ a < b → (∅ ++ a ++ b).min = a;%bmin-two-01: ⊦ a < b → (∅ ++ a ++ b).butmin = ∅ ++ b;%min-one: ⊦ (∅ ++ a).min = a;%sls: ⊦ a ≠ b → (¬ a < b ↔ b < a); from specification oelem%eqtwo-01: ⊦ ∅ ++ a ++ b = ∅ ++ c ++ b ↔ a = c; from specification set-basic%eq-04: ⊦ s ++ b ++ a = s ++ a ++ b ↔ true; from specification set-basic Used formulas: b < a