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Mirrors > Home > ILE Home > Th. List > sbcabel | Unicode version |
Description: Interchange class substitution and class abstraction. (Contributed by NM, 5-Nov-2005.) |
Ref | Expression |
---|---|
sbcabel.1 |
Ref | Expression |
---|---|
sbcabel |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elex 2692 | . 2 | |
2 | sbcexg 2958 | . . . 4 | |
3 | sbcang 2947 | . . . . . 6 | |
4 | sbcalg 2956 | . . . . . . . . 9 | |
5 | sbcbig 2950 | . . . . . . . . . . 11 | |
6 | sbcg 2973 | . . . . . . . . . . . 12 | |
7 | 6 | bibi1d 232 | . . . . . . . . . . 11 |
8 | 5, 7 | bitrd 187 | . . . . . . . . . 10 |
9 | 8 | albidv 1796 | . . . . . . . . 9 |
10 | 4, 9 | bitrd 187 | . . . . . . . 8 |
11 | abeq2 2246 | . . . . . . . . 9 | |
12 | 11 | sbcbii 2963 | . . . . . . . 8 |
13 | abeq2 2246 | . . . . . . . 8 | |
14 | 10, 12, 13 | 3bitr4g 222 | . . . . . . 7 |
15 | sbcabel.1 | . . . . . . . . 9 | |
16 | 15 | nfcri 2273 | . . . . . . . 8 |
17 | 16 | sbcgf 2971 | . . . . . . 7 |
18 | 14, 17 | anbi12d 464 | . . . . . 6 |
19 | 3, 18 | bitrd 187 | . . . . 5 |
20 | 19 | exbidv 1797 | . . . 4 |
21 | 2, 20 | bitrd 187 | . . 3 |
22 | df-clel 2133 | . . . 4 | |
23 | 22 | sbcbii 2963 | . . 3 |
24 | df-clel 2133 | . . 3 | |
25 | 21, 23, 24 | 3bitr4g 222 | . 2 |
26 | 1, 25 | syl 14 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wb 104 wal 1329 wceq 1331 wex 1468 wcel 1480 cab 2123 wnfc 2266 cvv 2681 wsbc 2904 |
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 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2119 |
This theorem depends on definitions: df-bi 116 df-tru 1334 df-nf 1437 df-sb 1736 df-clab 2124 df-cleq 2130 df-clel 2133 df-nfc 2268 df-v 2683 df-sbc 2905 |
This theorem is referenced by: csbexga 4051 |
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