def sp.eta

bend-osdev-mode-core@0.1.0.0 · PROOF.bend:90

import Base
import bend-osdev-mode-core@0.1.0.0/mode_core.bend as M

90def sp.eta(s: M.CmSplit) -> {M.CmSplit{M.cm.split.blocks(s), M.cm.split.tail(s)} == s : M.CmSplit}:
91  match s:
92    case M.CmSplit{bs, t}:
93      {==}