Theorem normcli

Description: Real closure of the norm of a vector. (Contributed by NM, 30-Sep-1999) (New usage is discouraged.)

	Ref	Expression
Hypothesis	normcl.1	|- A e. ~H
Assertion	normcli	|- ( normh ` A ) e. RR

Proof

Step	Hyp	Ref	Expression
1		normcl.1	|- A e. ~H
2		normcl	|- ( A e. ~H -> ( normh ` A ) e. RR )
3	1 2	ax-mp	|- ( normh ` A ) e. RR