def internal_sym_eq

bend-mathlib@0.8.1.0 · perm.bend:295

import Base
import bendlib-kernel-list@1.0.0.0/list.bend as K

295def internal_sym_eq(-A: Data, +s: List<&2, Nat>, +xs: List<&2, A>, -ys: List<&2, A>, e: K.perm_steps(A, s, xs, ys)) -> K.perm_steps(A, internal_invert(s), ys, xs):
296  %e : {K.apply(A, internal_invert(s), _) == xs : List<&2, A>}
297  internal_apply_invert(A, s, xs)