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| Contents | Language Implementations | Commun Lisp | 

Asserts that A is of type T, throwing a error of type "type-error" on failure

Asserts that A is of type T, branching to B on failure.

Asserts that list A is of length L, branching to B on failure.

Asserts that list A is at least of length L, branching to B on failure.

Asserts that list A is at least of length L and at most of length M, branching to B on failure.

Asserts that list A is composed of an even number of elements, branching to B on failure.
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