def law_swap_observed

bendtorch-core@0.1.0.0 · src/storage/refinement.bend:401

import Base
import bendtorch-core@0.1.0.0/src/storage/model.bend as Model

401def law_swap_observed(-T: Data, +d: Nat, array: Array<T>, +i: U32, new: T,
402  valid: Model.Balanced(T, d, array)) ->
403  {Some{second(T, Array.swap(T, array, i, new))} == Model.observe(T, d, array, route(d, i)) : Maybe<&2, T>}:
404  swap_observed(T, d, array, i, new, swap(T, d, array, i, new, valid))