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| Description: Membership in a power class. Theorem 86 of [Suppes] p. 47. |
| Ref | Expression |
|---|---|
| elpw.1 |
|
| Ref | Expression |
|---|---|
| elpw |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elpw.1 |
. 2
| |
| 2 | eleq1 1531 |
. 2
| |
| 3 | sseq1 2078 |
. 2
| |
| 4 | df-pw 2398 |
. . 3
| |
| 5 | 4 | abeq2i 1567 |
. 2
|
| 6 | 1, 2, 3, 5 | vtoclb 1841 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: elpwg 2401 hbpw 2403 pwid 2404 prsspw 2476 pwv 2497 iinpw 2612 iunpwss 2613 dftr4 2680 0elpw 2731 abssexg 2742 snelpw 2747 sspwb 2750 unipw 2751 pwuni 2752 ssextss 2757 pwin 2820 pwunss 2821 pwssun 2822 pwundif 2823 iunpw 2909 ordpwsuc 3061 xpsspw 3252 fabexg 3644 abexssex 3863 canth 3898 mapval2 4325 pw2en 4432 ssenen 4490 inf3lem6 4598 setind2 4629 r1tr 4634 tz9.12lem3 4641 rankel 4660 rankval3 4661 rankpw 4664 numthlem 4763 ioof 6341 iccf 6342 infxpidmlem9 7511 infmap2lem2 7530 tgval2t 7567 tgss3t 7588 basgent 7590 distop 7599 ntrfval 7617 clsfval 7618 ntrval 7626 clsval 7627 neifval 7664 neif 7665 neival 7667 lpfval 7692 lpval 7693 islp2 7697 lmfval 7877 iscau 7888 sspval 8329 ubthlem6 8478 abfi 10385 ficli 10404 fiv 10410 qusp 10466 fgsb 10480 fgsb2 10485 dtopcl 10495 blkssatm 10639 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 960 ax-gen 961 ax-8 962 ax-10 964 ax-12 966 ax-17 969 ax-4 971 ax-5o 973 ax-6o 976 ax-9o 1121 ax-10o 1138 ax-16 1208 ax-11o 1216 ax-ext 1457 |
| This theorem depends on definitions: df-bi 147 df-an 225 df-ex 979 df-sb 1170 df-clab 1462 df-cleq 1467 df-clel 1470 df-v 1808 df-in 2047 df-ss 2049 df-pw 2398 |