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google / lisp-koans

Common Lisp Koans is a language learning exercise in the same vein as the ruby koans, python koans and others. It is a port of the prior koans with some modifications to highlight lisp-specific features. Structured as ordered groups of broken unit tests, the project guides the learner progressively through many Common Lisp language features.

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nil or t depends on implementation

mzgcz opened this issue · comments

commented

(subtypep '(vector double-float 100) '(array number *))
In SBCL, nil
In Clisp, t

commented

double-float is subtype of number, but we can't say double-float list is subtype of number list.