PROOF.h.eq_sym_f: def of bend-kit-collections@0.1.4.1
Import: import bend-kit-collections@0.1.4.1/PROOF.bend as PROOF
Lines 2375-2380 of bend-kit-collections@0.1.4.1/PROOF.bend: https://jend.leeeet.dev/read.txt?path=bend-kit-collections@0.1.4.1/PROOF.bend&start_line=2375&end_line=2380

import Base

def h.eq_sym_f(
  ~K: Data, ~eq: K -> K -> Bool, ~refl: @x: K -> {eq(x, x) == True{} : Bool},
  ~sound: @x: K -> @y: K -> {eq(x, y) == True{} : Bool} -> {x == y : K},
  +k: K, +key: K, e: {eq(k, key) == False{} : Bool}
) -> {eq(key, k) == False{} : Bool}:
  h.eq_sym_f.c(~K, ~eq, ~refl, ~sound, k, key, e, eq(key, k), {==})

Uses (2):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=bend-kit-collections@0.1.4.1/PROOF.bend&name=h.eq_sym_f.c