def some_inj
import bend-osdev-algo@0.1.0.0/PROOF.bend as PROOFimport Base
65def some_inj(-a: Nat, -b: Nat, e: {Some{a} == Some{b} : Maybe<&2, Nat>}) -> {a == b : Nat}:
66 Equal.cong(Maybe<&2, Nat>, Nat, m => maybe.get(m), Some{a}, Some{b}, e)
import bend-osdev-algo@0.1.0.0/PROOF.bend as PROOFimport Base
65def some_inj(-a: Nat, -b: Nat, e: {Some{a} == Some{b} : Maybe<&2, Nat>}) -> {a == b : Nat}:
66 Equal.cong(Maybe<&2, Nat>, Nat, m => maybe.get(m), Some{a}, Some{b}, e)