def bgroups_u
import bendtorch@1.3.0.0/main.bend as Bendtorchimport Base
2846def bgroups_u(left: Nat, +j: Nat, +bi: Nat, +t: Nat, +w: Nat, +kvw: Nat, +g: Nat, +hd: Nat, s: BL) -> BL:
2847 match left:
2848 case 0n:
2849 s
2850 case 1n+n:
2851 bgroups_u(n, 1n+j, bi, t, w, kvw, g, hd, bunit(t, w, kvw, g, hd, bi, j, s))