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def not_true

bend-collections-laws-math@1.0.0.0 · proofs/lib/logic.bend:37

import bend-collections-laws-math@1.0.0.0/proofs/lib/logic.bend as Logic
import Base

37def not_true(b: Bool, e: {Bool.not(b) == True{} : Bool}) -> {b == False{} : Bool}:
38  match b:
39    case False{}:
40      {==}
41    case True{}:
42      Empty.absurd({True{} == False{} : Bool}, false_true(e))

Uses (4)

Used by (1)