nicholasbs/statemachines — comment on commit 4fc7e8d6e8b7414c8f30a2ad7f2a4be01f049fec
File: pda.ss line 32
By apgwoz:

No need for `(if)` here, because #f and '() are treated as false in a boolean context. Also, there's no need to quote a constant like #t or #f--they already evaluate to themselves.