Description: Membership in a class abstraction, using implicit substitution. (Contributed by NM, 13-Sep-1995)
Ref | Expression | ||
---|---|---|---|
Hypotheses | elab2g.1 | |
|
elab2g.2 | |
||
Assertion | elab2g | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elab2g.1 | |
|
2 | elab2g.2 | |
|
3 | 2 | eleq2i | |
4 | 1 | elabg | |
5 | 3 4 | bitrid | |