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Related theorems Unicode version |
| Description: Equivalence of ordered pair abstraction subclass and implication. |
| Ref | Expression |
|---|---|
| ssopab2 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | hbopab1 2808 |
. . . 4
| |
| 2 | hbopab1 2808 |
. . . 4
| |
| 3 | 1, 2 | hbss 2058 |
. . 3
|
| 4 | hbopab2 2809 |
. . . . 5
| |
| 5 | hbopab2 2809 |
. . . . 5
| |
| 6 | 4, 5 | hbss 2058 |
. . . 4
|
| 7 | opex 2777 |
. . . . . 6
| |
| 8 | 7 | isseti 1811 |
. . . . 5
|
| 9 | copsexg 2787 |
. . . . . . . . 9
| |
| 10 | copsexg 2787 |
. . . . . . . . 9
| |
| 11 | 9, 10 | imbi12d 625 |
. . . . . . . 8
|
| 12 | ss2ab 2112 |
. . . . . . . . 9
| |
| 13 | ax-4 971 |
. . . . . . . . 9
| |
| 14 | 12, 13 | sylbi 199 |
. . . . . . . 8
|
| 15 | 11, 14 | syl5bir 210 |
. . . . . . 7
|
| 16 | df-opab 2662 |
. . . . . . . 8
| |
| 17 | df-opab 2662 |
. . . . . . . 8
| |
| 18 | 16, 17 | sseq12i 2083 |
. . . . . . 7
|
| 19 | 15, 18 | syl5ib 206 |
. . . . . 6
|
| 20 | 19 | 19.23aiv 1293 |
. . . . 5
|
| 21 | 8, 20 | ax-mp 7 |
. . . 4
|
| 22 | 6, 21 | 19.21ai 996 |
. . 3
|
| 23 | 3, 22 | 19.21ai 996 |
. 2
|
| 24 | hba1 1001 |
. . . . . 6
| |
| 25 | hba1 1001 |
. . . . . . . 8
| |
| 26 | ax-4 971 |
. . . . . . . . 9
| |
| 27 | 26 | anim2d 560 |
. . . . . . . 8
|
| 28 | 25, 27 | 19.22d 1060 |
. . . . . . 7
|
| 29 | 28 | a4s 982 |
. . . . . 6
|
| 30 | 24, 29 | 19.22d 1060 |
. . . . 5
|
| 31 | 30 | 19.21aiv 1284 |
. . . 4
|
| 32 | 31, 12 | sylibr 200 |
. . 3
|
| 33 | 32, 16, 17 | 3sstr4g 2098 |
. 2
|
| 34 | 23, 33 | impbi 157 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: ssopab2i 2818 cnvss 3286 cotr 3428 cnvsym 3429 dffun2 3518 |
| 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-11 965 ax-12 966 ax-13 967 ax-14 968 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 ax-sep 2698 ax-pow 2737 ax-pr 2774 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-ex 979 df-sb 1170 df-eu 1380 df-mo 1381 df-clab 1462 df-cleq 1467 df-clel 1470 df-ne 1584 df-v 1808 df-dif 2045 df-un 2046 df-in 2047 df-ss 2049 df-nul 2277 df-pw 2398 df-sn 2408 df-pr 2409 df-op 2412 df-opab 2662 |