clojure - How do I multiply all elements in one collection with all the elements in another collection? -

say have:

(def s1 [1 2 3 4 5]) (def s2 [1 2 3 4 5]) 

for every x in s1, want multiply every y in s2.

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to clarify, want cartesian product, don't think map works here.

(for [x1 s1       x2 s2]   (* x1 x2))