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Mirrors > Home > MPE Home > Th. List > opelco2g | Structured version Visualization version Unicode version |
Description: Ordered pair membership in a composition. (Contributed by NM, 27-Jan-1997.) (Revised by Mario Carneiro, 24-Feb-2015.) |
Ref | Expression |
---|---|
opelco2g |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | brcog 5288 | . 2 | |
2 | df-br 4654 | . 2 | |
3 | df-br 4654 | . . . 4 | |
4 | df-br 4654 | . . . 4 | |
5 | 3, 4 | anbi12i 733 | . . 3 |
6 | 5 | exbii 1774 | . 2 |
7 | 1, 2, 6 | 3bitr3g 302 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wb 196 wa 384 wex 1704 wcel 1990 cop 4183 class class class wbr 4653 ccom 5118 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-sep 4781 ax-nul 4789 ax-pr 4906 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-rab 2921 df-v 3202 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-sn 4178 df-pr 4180 df-op 4184 df-br 4654 df-opab 4713 df-co 5123 |
This theorem is referenced by: dfco2 5634 dmfco 6272 |
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