NatProofs.contradiction: def of bendtorch-core@0.1.0.0
Import: import bendtorch-core@0.1.0.0/src/shape/nat_proofs.bend as NatProofs
Lines 6-7 of bendtorch-core@0.1.0.0/src/shape/nat_proofs.bend: https://jend.leeeet.dev/read.txt?path=bendtorch-core@0.1.0.0/src/shape/nat_proofs.bend&start_line=6&end_line=7

import Base
import bendtorch-core@0.1.0.0/src/shape/core.bend as Shape

def contradiction(-value: Bool, yes: {True{} == value : Bool}, no: {False{} == value : Bool}) -> Empty:
  Shape.clash(Equal.trans(Bool, True{}, value, False{}, yes, Equal.sym(Bool, False{}, value, no)))

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Empty
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Equal.sym
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Equal.trans
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/shape/core.bend&name=clash