def double_injective

bendtorch-core@0.1.0.0 · src/tensor/word_injective.bend:43

import Base

43def double_injective(+left: Nat, +right: Nat, equal: {Nat.double(left) == Nat.double(right) : Nat}) -> {left == right : Nat}:
44  Equal.trans(Nat, left, half(Nat.double(left)), right,
45    Equal.sym(Nat, half(Nat.double(left)), left, half_double(left)),
46    Equal.trans(Nat, half(Nat.double(left)), half(Nat.double(right)), right,
47      Equal.cong(Nat, Nat, n => half(n), Nat.double(left), Nat.double(right), equal), half_double(right)))