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| Mirrors > Home > ILE Home > Th. List > sbthlem7 | Unicode version | ||
| Description: Lemma for isbth 7274. (Contributed by NM, 27-Mar-1998.) |
| Ref | Expression |
|---|---|
| sbthlem.1 |
|
| sbthlem.2 |
|
| sbthlem.3 |
|
| Ref | Expression |
|---|---|
| sbthlem7 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | funres 5413 |
. . 3
| |
| 2 | funres 5413 |
. . 3
| |
| 3 | dmres 5079 |
. . . . . . . . 9
| |
| 4 | inss1 3451 |
. . . . . . . . 9
| |
| 5 | 3, 4 | eqsstri 3280 |
. . . . . . . 8
|
| 6 | ssrin 3456 |
. . . . . . . 8
| |
| 7 | 5, 6 | ax-mp 5 |
. . . . . . 7
|
| 8 | dmres 5079 |
. . . . . . . . 9
| |
| 9 | inss1 3451 |
. . . . . . . . 9
| |
| 10 | 8, 9 | eqsstri 3280 |
. . . . . . . 8
|
| 11 | sslin 3457 |
. . . . . . . 8
| |
| 12 | 10, 11 | ax-mp 5 |
. . . . . . 7
|
| 13 | 7, 12 | sstri 3257 |
. . . . . 6
|
| 14 | disjdif 3596 |
. . . . . 6
| |
| 15 | 13, 14 | sseqtri 3282 |
. . . . 5
|
| 16 | ss0 3563 |
. . . . 5
| |
| 17 | 15, 16 | ax-mp 5 |
. . . 4
|
| 18 | funun 5417 |
. . . 4
| |
| 19 | 17, 18 | mpan2 429 |
. . 3
|
| 20 | 1, 2, 19 | syl2an 289 |
. 2
|
| 21 | sbthlem.3 |
. . 3
| |
| 22 | 21 | funeqi 5393 |
. 2
|
| 23 | 20, 22 | sylibr 134 |
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-in1 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4244 ax-pow 4306 ax-pr 4341 |
| This theorem depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-v 2823 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-nul 3521 df-pw 3687 df-sn 3711 df-pr 3712 df-op 3714 df-br 4126 df-opab 4188 df-id 4433 df-xp 4775 df-rel 4776 df-cnv 4777 df-co 4778 df-dm 4779 df-res 4781 df-fun 5374 |
| This theorem is referenced by: sbthlemi9 7272 |
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