Check.tab.inv: def of bend-osdev-gf@0.1.1.0
Import: import bend-osdev-gf@0.1.1.0/check.bend as Check
Lines 39-46 of bend-osdev-gf@0.1.1.0/check.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-gf@0.1.1.0/check.bend&start_line=39&end_line=46

import Base
import bend-osdev-gf@0.1.1.0/gf.bend as G
import bend-osdev-gf@0.1.1.0/tables.bend as T

def tab.inv(n: Nat, +f: G.Gf8Field, r: T.Gf8Tab & U32, +a: U32, bad: Nat) -> Nat:
  match n:
    case 0n:
      bad
    case 1n+k:
      (t, +v) = r
      +a1 = U32.add(a, 1)
      tab.inv(k, f, T.Gf8Tab.inv(t, a1), a1, tab.count(U32.is_eq(v, G.Gf8.inv(f, a)), bad))

Uses (11):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Sigma
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.add
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.is_eq
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-gf@0.1.1.0/check.bend&name=tab.count
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-gf@0.1.1.0/gf.bend&name=Gf8.inv
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-gf@0.1.1.0/gf.bend&name=Gf8Field
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-gf@0.1.1.0/tables.bend&name=Gf8Tab
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-gf@0.1.1.0/tables.bend&name=Gf8Tab.inv