## spiral_next
Basis Function Combinator
[[[abs] ii <=] [[<>] [pop !-] ||] &&] [[!-]
++ -- ifte dip] [[pop !-] [--] [++] ifte]
ifte
Gentzen diagram.
### Definition
if not basis.
### Derivation
if not basis.
### Source
if basis
### Discussion
Lorem ipsum.
### Crosslinks
Lorem ipsum.