Major Section: PROGRAMMING
Completion Axiom:
(equal (unary-- x) (if (acl2-numberp x) (unary-- x) 0))
Guard for (unary-- x):
(acl2-numberp x)Notice that like all arithmetic functions,
unary-- treats
non-numeric inputs as 0.
Calls of the macro - on one argument expand to calls of
unary--; see -.