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| Description: Interchange class substitution and restricted quantifier. (Unnecessary distinct variable restrictions were removed by David Abernethy, 22-Feb-2010.) |
| Ref | Expression |
|---|---|
| sbcralt |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sbc6g 2305 |
. . . . . 6
| |
| 2 | 1 | adantr 423 |
. . . . 5
|
| 3 | 2 | a4s 1168 |
. . . 4
|
| 4 | hba1 1188 |
. . . . . . . . 9
| |
| 5 | ax-17 1155 |
. . . . . . . . . 10
| |
| 6 | 5 | a1i 8 |
. . . . . . . . 9
|
| 7 | eleq1 1794 |
. . . . . . . . . . . . 13
| |
| 8 | 7 | albidv 1494 |
. . . . . . . . . . . . 13
|
| 9 | 7, 8 | imbi12d 685 |
. . . . . . . . . . . 12
|
| 10 | 9 | a4v 1487 |
. . . . . . . . . . 11
|
| 11 | 10 | adantl 422 |
. . . . . . . . . 10
|
| 12 | 11 | a4s 1168 |
. . . . . . . . 9
|
| 13 | 4, 6, 12 | hbeqd 2257 |
. . . . . . . 8
|
| 14 | 13 | a5i 1173 |
. . . . . . 7
|
| 15 | r19.21t 2011 |
. . . . . . 7
| |
| 16 | 14, 15 | syl 12 |
. . . . . 6
|
| 17 | 16 | albidv 1494 |
. . . . 5
|
| 18 | ralcom4 2143 |
. . . . 5
| |
| 19 | 17, 18 | syl5rbb 589 |
. . . 4
|
| 20 | 3, 19 | bitrd 584 |
. . 3
|
| 21 | visset 2128 |
. . . . . . 7
| |
| 22 | sbc6g 2305 |
. . . . . . . . 9
| |
| 23 | ralcom4 2143 |
. . . . . . . . . 10
| |
| 24 | r19.21v 2012 |
. . . . . . . . . . 11
| |
| 25 | 24 | albii 1184 |
. . . . . . . . . 10
|
| 26 | 23, 25 | bitr2i 190 |
. . . . . . . . 9
|
| 27 | 22, 26 | syl6bb 592 |
. . . . . . . 8
|
| 28 | sbc6g 2305 |
. . . . . . . . 9
| |
| 29 | 28 | ralbidv 1957 |
. . . . . . . 8
|
| 30 | 27, 29 | bitr4d 587 |
. . . . . . 7
|
| 31 | 21, 30 | ax-mp 7 |
. . . . . 6
|
| 32 | 31 | sbcbii 2339 |
. . . . 5
|
| 33 | 32 | adantr 423 |
. . . 4
|
| 34 | 33 | a4s 1168 |
. . 3
|
| 35 | sbc6g 2305 |
. . . . . 6
| |
| 36 | 35 | adantr 423 |
. . . . 5
|
| 37 | 36 | a4s 1168 |
. . . 4
|
| 38 | 4, 37 | ralbid 1955 |
. . 3
|
| 39 | 20, 34, 38 | 3bitr4d 606 |
. 2
|
| 40 | sbccog 2300 |
. . . 4
| |
| 41 | 40 | adantr 423 |
. . 3
|
| 42 | 41 | a4s 1168 |
. 2
|
| 43 | sbccog 2300 |
. . . . 5
| |
| 44 | 43 | adantr 423 |
. . . 4
|
| 45 | 44 | a4s 1168 |
. . 3
|
| 46 | 4, 45 | ralbid 1955 |
. 2
|
| 47 | 39, 42, 46 | 3bitr3d 604 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: sbcrext 2361 sbcralgOLD 2365 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-5 1140 ax-7 1142 ax-gen 1143 ax-8 1144 ax-9 1145 ax-10 1146 ax-11 1147 ax-12 1148 ax-17 1155 ax-4 1157 ax-5o 1159 ax-6o 1162 ax-9o 1319 ax-10o 1338 ax-16 1418 ax-11o 1426 ax-ext 1702 |
| This theorem depends on definitions: df-bi 163 df-or 240 df-an 241 df-ex 1165 df-sb 1374 df-clab 1709 df-cleq 1714 df-clel 1717 df-ral 1943 df-v 2127 df-sbc 2287 |