law eq_true_of_or_eq_false_right

bend-mathlib@0.8.1.0 · bool.bend:491

import Base

491# If a or b is true and b is false then a is true.
492law eq_true_of_or_eq_false_right:
493  for a: Bool
494  for -b: Bool
495  for h: {Bool.or(a, b) == True{} : Bool}
496  for hb: {b == False{} : Bool}
497  {a == True{} : Bool}