Theorem sqcli

Description: Closure of square. (Contributed by NM, 2-Aug-1999)

	Ref	Expression
Hypothesis	sqval.1	|- A e. CC
Assertion	sqcli	|- ( A ^ 2 ) e. CC

Proof

Step	Hyp	Ref	Expression
1		sqval.1	|- A e. CC
2		sqcl	|- ( A e. CC -> ( A ^ 2 ) e. CC )
3	1 2	ax-mp	|- ( A ^ 2 ) e. CC