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 |
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 |