ProofGrid.know_row_get.some: def of minebender-game@1.0.0.0
Import: import minebender-game@1.0.0.0/proof_grid.bend as ProofGrid
Lines 28-30 of minebender-game@1.0.0.0/proof_grid.bend: https://jend.leeeet.dev/read.txt?path=minebender-game@1.0.0.0/proof_grid.bend&start_line=28&end_line=30

import Base

def know_row_get.some(-A: Data, +a: A, +x: A, e: {Some{a} == Some{x} : Maybe<&2, A>}) ->
  {a == x : A}:
  Equal.cong(Maybe<&2, A>, A, m => Maybe.value(A, a, m), Some{a}, Some{x}, e)

Uses (3):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Equal.cong
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/proof_grid.bend&name=Maybe.value