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def some_inj

bend-collections-laws-math@1.0.0.0 · proofs/math/random/shuffle.bend:37

import bend-collections-laws-math@1.0.0.0/proofs/math/random/shuffle.bend as Shuffle
import Base

37def some_inj(-A: Data, +x: A, +y: A, e: {Some{x} == Some{y} : Maybe<&2, A>}) -> {x == y : A}:
38  Equal.cong(Maybe<&2, A>, A, m => some_or(A, m, x), Some{x}, Some{y}, e)

Uses (3)

Used by (1)