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Mirrors > Home > ILE Home > Th. List > dfin5 | Unicode version |
Description: Alternate definition for the intersection of two classes. (Contributed by NM, 6-Jul-2005.) |
Ref | Expression |
---|---|
dfin5 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-in 2924 | . 2 | |
2 | df-rab 2315 | . 2 | |
3 | 1, 2 | eqtr4i 2063 | 1 |
Colors of variables: wff set class |
Syntax hints: wa 97 wceq 1243 wcel 1393 cab 2026 crab 2310 cin 2916 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 99 ax-ia2 100 ax-ia3 101 ax-5 1336 ax-gen 1338 ax-4 1400 ax-17 1419 ax-ext 2022 |
This theorem depends on definitions: df-bi 110 df-cleq 2033 df-rab 2315 df-in 2924 |
This theorem is referenced by: nfin 3143 rabbi2dva 3145 bj-inex 10027 |
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