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Mirrors > Home > ILE Home > Th. List > opabid | Unicode version |
Description: The law of concretion. Special case of Theorem 9.5 of [Quine] p. 61. (Contributed by NM, 14-Apr-1995.) (Proof shortened by Andrew Salmon, 25-Jul-2011.) |
Ref | Expression |
---|---|
opabid |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | vex 2733 | . . 3 | |
2 | vex 2733 | . . 3 | |
3 | 1, 2 | opex 4214 | . 2 |
4 | copsexg 4229 | . . 3 | |
5 | 4 | bicomd 140 | . 2 |
6 | df-opab 4051 | . 2 | |
7 | 3, 5, 6 | elab2 2878 | 1 |
Colors of variables: wff set class |
Syntax hints: wa 103 wb 104 wceq 1348 wex 1485 wcel 2141 cop 3586 copab 4049 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 704 ax-5 1440 ax-7 1441 ax-gen 1442 ax-ie1 1486 ax-ie2 1487 ax-8 1497 ax-10 1498 ax-11 1499 ax-i12 1500 ax-bndl 1502 ax-4 1503 ax-17 1519 ax-i9 1523 ax-ial 1527 ax-i5r 1528 ax-14 2144 ax-ext 2152 ax-sep 4107 ax-pow 4160 ax-pr 4194 |
This theorem depends on definitions: df-bi 116 df-3an 975 df-tru 1351 df-nf 1454 df-sb 1756 df-eu 2022 df-mo 2023 df-clab 2157 df-cleq 2163 df-clel 2166 df-nfc 2301 df-v 2732 df-un 3125 df-in 3127 df-ss 3134 df-pw 3568 df-sn 3589 df-pr 3590 df-op 3592 df-opab 4051 |
This theorem is referenced by: opelopabsb 4245 ssopab2b 4261 dmopab 4822 rnopab 4858 funopab 5233 funco 5238 fvmptss2 5571 f1ompt 5647 ovid 5969 enssdom 6740 |
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