Question on sets (Discrete Math)?

Let A and B be sets. Show that

A - B subset A

How would I do that? I been trying to figure that out for a while now. Thanks!

2007-07-22 15:33:11 · 1 answers · asked by ddw4e 2 in Science & Mathematics ➔ Mathematics

Let x be in A-B. Then x is in A but not in B.
In particular, x is in A.
So A- B is a subset of A.

2007-07-22 16:29:56 · answer #1 · answered by steiner1745 7 · 0⤊ 0⤋

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