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| Mirrors > Home > MPE Home > Th. List > ssrelOLD | Structured version Visualization version Unicode version | ||
| Description: Obsolete proof of ssrel 5207 as of 25-Oct-2021. (Contributed by NM, 2-Aug-1994.) (Proof shortened by Andrew Salmon, 27-Aug-2011.) (Proof modification is discouraged.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| ssrelOLD |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ssel 3597 |
. . 3
| |
| 2 | 1 | alrimivv 1856 |
. 2
|
| 3 | eleq1 2689 |
. . . . . . . . . . 11
| |
| 4 | eleq1 2689 |
. . . . . . . . . . 11
| |
| 5 | 3, 4 | imbi12d 334 |
. . . . . . . . . 10
|
| 6 | 5 | biimprcd 240 |
. . . . . . . . 9
|
| 7 | 6 | 2alimi 1740 |
. . . . . . . 8
|
| 8 | 19.23vv 1903 |
. . . . . . . 8
| |
| 9 | 7, 8 | sylib 208 |
. . . . . . 7
|
| 10 | 9 | com23 86 |
. . . . . 6
|
| 11 | 10 | a2d 29 |
. . . . 5
|
| 12 | 11 | alimdv 1845 |
. . . 4
|
| 13 | df-rel 5121 |
. . . . 5
| |
| 14 | dfss2 3591 |
. . . . 5
| |
| 15 | elvv 5177 |
. . . . . . 7
| |
| 16 | 15 | imbi2i 326 |
. . . . . 6
|
| 17 | 16 | albii 1747 |
. . . . 5
|
| 18 | 13, 14, 17 | 3bitri 286 |
. . . 4
|
| 19 | dfss2 3591 |
. . . 4
| |
| 20 | 12, 18, 19 | 3imtr4g 285 |
. . 3
|
| 21 | 20 | com12 32 |
. 2
|
| 22 | 2, 21 | impbid2 216 |
1
|
| Colors of variables: wff setvar class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-sep 4781 ax-nul 4789 ax-pr 4906 |
| This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-v 3202 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-sn 4178 df-pr 4180 df-op 4184 df-opab 4713 df-xp 5120 df-rel 5121 |
| This theorem is referenced by: (None) |
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