Description: Restricted quantifier version of spesbcd . (Contributed by Eric Schmidt, 29-Sep-2025)
Ref | Expression | ||
---|---|---|---|
Hypotheses | rspesbcd.1 | ||
rspesbcd.2 | |||
Assertion | rspesbcd |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | rspesbcd.1 | ||
2 | rspesbcd.2 | ||
3 | sbcel1v | ||
4 | 1 3 | sylibr | |
5 | sbcan | ||
6 | 4 2 5 | sylanbrc | |
7 | 6 | spesbcd | |
8 | df-rex | ||
9 | 7 8 | sylibr |