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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 3487 |
. . . 4
| |
| 2 | simplr 529 |
. . . 4
| |
| 3 | riotasbc 5987 |
. . . . 5
| |
| 4 | riotacl 5986 |
. . . . . 6
| |
| 5 | rspsbc 3115 |
. . . . . . 7
| |
| 6 | sbcimg 3073 |
. . . . . . 7
| |
| 7 | 5, 6 | sylibd 149 |
. . . . . 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 3221 |
. . . . . 6
| |
| 13 | 12 | ad2antrr 488 |
. . . . 5
|
| 14 | 11, 13 | mpd 13 |
. . . 4
|
| 15 | simprr 533 |
. . . 4
| |
| 16 | nfriota1 5978 |
. . . . 5
| |
| 17 | 16 | nfsbc1 3049 |
. . . . 5
|
| 18 | sbceq1a 3041 |
. . . . 5
| |
| 19 | 16, 17, 18 | riota2f 5993 |
. . . 4
|
| 20 | 14, 15, 19 | syl2anc 411 |
. . 3
|
| 21 | 10, 20 | mpbid 147 |
. 2
|
| 22 | 21 | eqcomd 2237 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ral 2515 df-rex 2516 df-reu 2517 df-rab 2519 df-v 2804 df-sbc 3032 df-un 3204 df-in 3206 df-ss 3213 df-sn 3675 df-pr 3676 df-uni 3894 df-iota 5286 df-riota 5970 |
| This theorem is referenced by: (None) |
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