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Mirrors > Home > ILE Home > Th. List > riotass2 | Unicode version |
Description: Restriction of a unique element to a smaller class. (Contributed by NM, 21-Aug-2011.) (Revised by NM, 22-Mar-2013.) |
Ref | Expression |
---|---|
riotass2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | reuss2 3407 | . . . 4 | |
2 | simplr 525 | . . . 4 | |
3 | riotasbc 5824 | . . . . 5 | |
4 | riotacl 5823 | . . . . . 6 | |
5 | rspsbc 3037 | . . . . . . 7 | |
6 | sbcimg 2996 | . . . . . . 7 | |
7 | 5, 6 | sylibd 148 | . . . . . 6 |
8 | 4, 7 | syl 14 | . . . . 5 |
9 | 3, 8 | mpid 42 | . . . 4 |
10 | 1, 2, 9 | sylc 62 | . . 3 |
11 | 1, 4 | syl 14 | . . . . 5 |
12 | ssel 3141 | . . . . . 6 | |
13 | 12 | ad2antrr 485 | . . . . 5 |
14 | 11, 13 | mpd 13 | . . . 4 |
15 | simprr 527 | . . . 4 | |
16 | nfriota1 5816 | . . . . 5 | |
17 | 16 | nfsbc1 2972 | . . . . 5 |
18 | sbceq1a 2964 | . . . . 5 | |
19 | 16, 17, 18 | riota2f 5830 | . . . 4 |
20 | 14, 15, 19 | syl2anc 409 | . . 3 |
21 | 10, 20 | mpbid 146 | . 2 |
22 | 21 | eqcomd 2176 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wb 104 wceq 1348 wcel 2141 wral 2448 wrex 2449 wreu 2450 wsbc 2955 wss 3121 crio 5808 |
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-ext 2152 |
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-ral 2453 df-rex 2454 df-reu 2455 df-rab 2457 df-v 2732 df-sbc 2956 df-un 3125 df-in 3127 df-ss 3134 df-sn 3589 df-pr 3590 df-uni 3797 df-iota 5160 df-riota 5809 |
This theorem is referenced by: (None) |
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