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Mirrors > Home > MPE Home > Th. List > elrab | Structured version Visualization version Unicode version |
Description: Membership in a restricted class abstraction, using implicit substitution. (Contributed by NM, 21-May-1999.) |
Ref | Expression |
---|---|
elrab.1 |
Ref | Expression |
---|---|
elrab |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nfcv 2764 | . 2 | |
2 | nfcv 2764 | . 2 | |
3 | nfv 1843 | . 2 | |
4 | elrab.1 | . 2 | |
5 | 1, 2, 3, 4 | elrabf 3360 | 1 |
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