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Mirrors > Home > ILE Home > Th. List > elrab2 | Unicode version |
Description: Membership in a class abstraction, using implicit substitution. (Contributed by NM, 2-Nov-2006.) |
Ref | Expression |
---|---|
elrab2.1 | |
elrab2.2 |
Ref | Expression |
---|---|
elrab2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elrab2.2 | . . 3 | |
2 | 1 | eleq2i 2237 | . 2 |
3 | elrab2.1 | . . 3 | |
4 | 3 | elrab 2886 | . 2 |
5 | 2, 4 | bitri 183 | 1 |
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