ProofTabCases.gc.isz: def of bend-osdev-gf@0.1.1.0
Import: import bend-osdev-gf@0.1.1.0/proof_tab_cases.bend as ProofTabCases
Lines 1051-1055 of bend-osdev-gf@0.1.1.0/proof_tab_cases.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-gf@0.1.1.0/proof_tab_cases.bend&start_line=1051&end_line=1055

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

def gc.isz(+a: U32) -> {U32.is_eq(G.Gf8.elt(a), 0) == G.Gf8.is_zero(a) : Bool}:
  match a:
    case U32{WCon{+b0, WCon{+b1, WCon{+b2, WCon{+b3, WCon{+b4, WCon{+b5, WCon{+b6, WCon{+b7, +r}}}}}}}}}:
      %Equal.sym(U32, G.Gf8.elt(U32{WCon{b0, WCon{b1, WCon{b2, WCon{b3, WCon{b4, WCon{b5, WCon{b6, WCon{b7, r}}}}}}}}}), G.Gf8Bits.to(G.Gf8Bits{b0, b1, b2, b3, b4, b5, b6, b7}), gc.elt_bits(b0, b1, b2, b3, b4, b5, b6, b7, r)) : {U32.is_eq(_, 0) == G.Gf8Bits.is_zero(G.Gf8Bits{b0, b1, b2, b3, b4, b5, b6, b7}) : Bool}
      gc.isz.bits(b0, b1, b2, b3, b4, b5, b6, b7)

Uses (12):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Equal.sym
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.is_eq
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Word.Con
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-gf@0.1.1.0/gf.bend&name=Gf8.elt
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-gf@0.1.1.0/gf.bend&name=Gf8.is_zero
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-gf@0.1.1.0/gf.bend&name=Gf8Bits
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-gf@0.1.1.0/gf.bend&name=Gf8Bits.is_zero
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-gf@0.1.1.0/gf.bend&name=Gf8Bits.to
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-gf@0.1.1.0/proof_tab_cases.bend&name=gc.elt_bits
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-gf@0.1.1.0/proof_tab_cases.bend&name=gc.isz.bits