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Mirrors > Home > ILE Home > Th. List > sbthlem7 | Unicode version |
Description: Lemma for isbth 6855. (Contributed by NM, 27-Mar-1998.) |
Ref | Expression |
---|---|
sbthlem.1 | |
sbthlem.2 | |
sbthlem.3 |
Ref | Expression |
---|---|
sbthlem7 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | funres 5164 | . . 3 | |
2 | funres 5164 | . . 3 | |
3 | dmres 4840 | . . . . . . . . 9 | |
4 | inss1 3296 | . . . . . . . . 9 | |
5 | 3, 4 | eqsstri 3129 | . . . . . . . 8 |
6 | ssrin 3301 | . . . . . . . 8 | |
7 | 5, 6 | ax-mp 5 | . . . . . . 7 |
8 | dmres 4840 | . . . . . . . . 9 | |
9 | inss1 3296 | . . . . . . . . 9 | |
10 | 8, 9 | eqsstri 3129 | . . . . . . . 8 |
11 | sslin 3302 | . . . . . . . 8 | |
12 | 10, 11 | ax-mp 5 | . . . . . . 7 |
13 | 7, 12 | sstri 3106 | . . . . . 6 |
14 | disjdif 3435 | . . . . . 6 | |
15 | 13, 14 | sseqtri 3131 | . . . . 5 |
16 | ss0 3403 | . . . . 5 | |
17 | 15, 16 | ax-mp 5 | . . . 4 |
18 | funun 5167 | . . . 4 | |
19 | 17, 18 | mpan2 421 | . . 3 |
20 | 1, 2, 19 | syl2an 287 | . 2 |
21 | sbthlem.3 | . . 3 | |
22 | 21 | funeqi 5144 | . 2 |
23 | 20, 22 | sylibr 133 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wceq 1331 wcel 1480 cab 2125 cvv 2686 cdif 3068 cun 3069 cin 3070 wss 3071 c0 3363 cuni 3736 ccnv 4538 cdm 4539 cres 4541 cima 4542 wfun 5117 |
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-in1 603 ax-in2 604 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-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 ax-sep 4046 ax-pow 4098 ax-pr 4131 |
This theorem depends on definitions: df-bi 116 df-3an 964 df-tru 1334 df-nf 1437 df-sb 1736 df-eu 2002 df-mo 2003 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-ral 2421 df-rex 2422 df-v 2688 df-dif 3073 df-un 3075 df-in 3077 df-ss 3084 df-nul 3364 df-pw 3512 df-sn 3533 df-pr 3534 df-op 3536 df-br 3930 df-opab 3990 df-id 4215 df-xp 4545 df-rel 4546 df-cnv 4547 df-co 4548 df-dm 4549 df-res 4551 df-fun 5125 |
This theorem is referenced by: sbthlemi9 6853 |
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