PROOF.or_cong: def of bendtorch@1.3.0.0
Import: import bendtorch@1.3.0.0/PROOF.bend as PROOF
Lines 908-909 of bendtorch@1.3.0.0/PROOF.bend: https://jend.leeeet.dev/read.txt?path=bendtorch@1.3.0.0/PROOF.bend&start_line=908&end_line=909

import Base

def or_cong(+p: Bool, +p2: Bool, +q: Bool, +q2: Bool, e: {p == p2 : Bool}, f: {q == q2 : Bool}) -> {Bool.or(p, q) == Bool.or(p2, q2) : Bool}:
  Equal.trans(Bool, Bool.or(p, q), Bool.or(p2, q), Bool.or(p2, q2), Equal.cong(Bool, Bool, x => Bool.or(x, q), p, p2, e), Equal.cong(Bool, Bool, x => Bool.or(p2, x), q, q2, f))

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.or
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Equal.cong
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Equal.trans