law eq_true_of_or_eq_false_left

bend-mathlib@0.8.1.0 · bool.bend:506

import Base

506# If a or b is true and a is false then b is true.
507law eq_true_of_or_eq_false_left:
508  for a: Bool
509  for -b: Bool
510  for h: {Bool.or(a, b) == True{} : Bool}
511  for ha: {a == False{} : Bool}
512  {b == True{} : Bool}