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| Description: Restricted first member of a class composition. |
| Ref | Expression |
|---|---|
| cores |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | pm3.26 319 |
. . . . . . . 8
| |
| 2 | 1 | anim1i 334 |
. . . . . . 7
|
| 3 | ssel 2066 |
. . . . . . . . . 10
| |
| 4 | visset 1816 |
. . . . . . . . . . 11
| |
| 5 | visset 1816 |
. . . . . . . . . . 11
| |
| 6 | 4, 5 | brelrn 3350 |
. . . . . . . . . 10
|
| 7 | 3, 6 | syl5 21 |
. . . . . . . . 9
|
| 8 | 7 | ancld 298 |
. . . . . . . 8
|
| 9 | 8 | anim1d 562 |
. . . . . . 7
|
| 10 | 2, 9 | impbid2 520 |
. . . . . 6
|
| 11 | visset 1816 |
. . . . . . . . . 10
| |
| 12 | 11 | brres 3379 |
. . . . . . . . 9
|
| 13 | ancom 437 |
. . . . . . . . 9
| |
| 14 | 12, 13 | bitr 173 |
. . . . . . . 8
|
| 15 | 14 | anbi2i 482 |
. . . . . . 7
|
| 16 | anass 441 |
. . . . . . 7
| |
| 17 | 15, 16 | bitr4 176 |
. . . . . 6
|
| 18 | 10, 17 | syl5bb 534 |
. . . . 5
|
| 19 | 18 | exbidv 1281 |
. . . 4
|
| 20 | 4, 11 | opelco 3294 |
. . . 4
|
| 21 | 4, 11 | opelco 3294 |
. . . 4
|
| 22 | 19, 20, 21 | 3bitr4g 557 |
. . 3
|
| 23 | 22 | 19.21aivv 1289 |
. 2
|
| 24 | relco 3490 |
. . 3
| |
| 25 | relco 3490 |
. . 3
| |
| 26 | eqrel 3256 |
. . 3
| |
| 27 | 24, 25, 26 | mp2an 699 |
. 2
|
| 28 | 23, 27 | sylibr 200 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: cocnvcnv1 3511 cores2 3513 ruclem17 7527 hhssims 9140 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 964 ax-gen 965 ax-8 966 ax-10 968 ax-11 969 ax-12 970 ax-13 971 ax-14 972 ax-17 973 ax-4 975 ax-5o 977 ax-6o 980 ax-9o 1125 ax-10o 1142 ax-16 1212 ax-11o 1220 ax-ext 1462 ax-sep 2708 ax-pow 2748 ax-pr 2785 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-3an 779 df-ex 983 df-sb 1174 df-eu 1384 df-mo 1385 df-clab 1467 df-cleq 1472 df-clel 1475 df-ne 1590 df-v 1815 df-dif 2052 df-un 2053 df-in 2054 df-ss 2056 df-nul 2284 df-pw 2406 df-sn 2416 df-pr 2417 df-op 2420 df-br 2625 df-opab 2672 df-xp 3190 df-rel 3191 df-cnv 3192 df-co 3193 df-dm 3194 df-rn 3195 df-res 3196 |