def h.g_nil_leaf

bend-kit-collections@0.1.4.1 · PROOF.bend:2783

import Base
import bend-kit-collections@0.1.4.1/hmap.bend as M

2783def h.g_nil_leaf(~K: Data, ~V: Data, ~eq: K -> K -> Bool, n: Nat, +mask: U32, +o: U32, +hk: U32, +k: K)
2784  -> {h.G(~K, ~V, ~eq, n, mask, M.HLeaf{o, Nil{}}, hk, k) == h.G(~K, ~V, ~eq, n, mask, M.HNil{}, hk, k) : Maybe<&2, V>}:
2785  match n:
2786    case 0n:
2787      {==}
2788    case 1n+p:
2789      h.bool_none(V, U32.is_eq(o, hk), None{}, {==})