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| Mirrors > Home > ILE Home > Th. List > sbthlem2 | Unicode version | ||
| Description: Lemma for isbth 7069. (Contributed by NM, 22-Mar-1998.) |
| Ref | Expression |
|---|---|
| sbthlem.1 |
|
| sbthlem.2 |
|
| Ref | Expression |
|---|---|
| sbthlem2 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sbthlem.1 |
. . . . . . . . 9
| |
| 2 | sbthlem.2 |
. . . . . . . . 9
| |
| 3 | 1, 2 | sbthlem1 7059 |
. . . . . . . 8
|
| 4 | imass2 5058 |
. . . . . . . 8
| |
| 5 | sscon 3307 |
. . . . . . . 8
| |
| 6 | 3, 4, 5 | mp2b 8 |
. . . . . . 7
|
| 7 | imass2 5058 |
. . . . . . 7
| |
| 8 | sscon 3307 |
. . . . . . 7
| |
| 9 | 6, 7, 8 | mp2b 8 |
. . . . . 6
|
| 10 | imassrn 5033 |
. . . . . . . 8
| |
| 11 | sstr2 3200 |
. . . . . . . 8
| |
| 12 | 10, 11 | ax-mp 5 |
. . . . . . 7
|
| 13 | difss 3299 |
. . . . . . 7
| |
| 14 | ssconb 3306 |
. . . . . . 7
| |
| 15 | 12, 13, 14 | sylancl 413 |
. . . . . 6
|
| 16 | 9, 15 | mpbiri 168 |
. . . . 5
|
| 17 | 16, 13 | jctil 312 |
. . . 4
|
| 18 | 1, 13 | ssexi 4182 |
. . . . 5
|
| 19 | sseq1 3216 |
. . . . . 6
| |
| 20 | imaeq2 5018 |
. . . . . . . . 9
| |
| 21 | 20 | difeq2d 3291 |
. . . . . . . 8
|
| 22 | 21 | imaeq2d 5022 |
. . . . . . 7
|
| 23 | difeq2 3285 |
. . . . . . 7
| |
| 24 | 22, 23 | sseq12d 3224 |
. . . . . 6
|
| 25 | 19, 24 | anbi12d 473 |
. . . . 5
|
| 26 | 18, 25 | elab 2917 |
. . . 4
|
| 27 | 17, 26 | sylibr 134 |
. . 3
|
| 28 | 27, 2 | eleqtrrdi 2299 |
. 2
|
| 29 | elssuni 3878 |
. 2
| |
| 30 | 28, 29 | syl 14 |
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 615 ax-in2 616 ax-io 711 ax-5 1470 ax-7 1471 ax-gen 1472 ax-ie1 1516 ax-ie2 1517 ax-8 1527 ax-10 1528 ax-11 1529 ax-i12 1530 ax-bndl 1532 ax-4 1533 ax-17 1549 ax-i9 1553 ax-ial 1557 ax-i5r 1558 ax-14 2179 ax-ext 2187 ax-sep 4162 ax-pow 4218 ax-pr 4253 |
| This theorem depends on definitions: df-bi 117 df-3an 983 df-tru 1376 df-nf 1484 df-sb 1786 df-eu 2057 df-mo 2058 df-clab 2192 df-cleq 2198 df-clel 2201 df-nfc 2337 df-ral 2489 df-rex 2490 df-rab 2493 df-v 2774 df-dif 3168 df-un 3170 df-in 3172 df-ss 3179 df-pw 3618 df-sn 3639 df-pr 3640 df-op 3642 df-uni 3851 df-br 4045 df-opab 4106 df-xp 4681 df-cnv 4683 df-dm 4685 df-rn 4686 df-res 4687 df-ima 4688 |
| This theorem is referenced by: sbthlemi3 7061 |
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