Description: Lemma for iscnrm3rlem8 and iscnrm3llem2 involving restricted existential quantifications. (Contributed by Zhi Wang, 5-Sep-2024)
Ref | Expression | ||
---|---|---|---|
Hypotheses | iscnrm3lem7.1 | ||
iscnrm3lem7.2 | |||
iscnrm3lem7.3 | |||
Assertion | iscnrm3lem7 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | iscnrm3lem7.1 | ||
2 | iscnrm3lem7.2 | ||
3 | iscnrm3lem7.3 | ||
4 | 1 2 | rspc2ev | |
5 | 3 4 | syl | |
6 | 5 | iscnrm3lem6 |