Theorem resqcli

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

	Ref	Expression
Hypothesis	resqcl.1	|- A e. RR
Assertion	resqcli	|- ( A ^ 2 ) e. RR

Proof

Step	Hyp	Ref	Expression
1		resqcl.1	|- A e. RR
2		resqcl	|- ( A e. RR -> ( A ^ 2 ) e. RR )
3	1 2	ax-mp	|- ( A ^ 2 ) e. RR