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| Mirrors > Home > ILE Home > Th. List > genpdflem | Unicode version | ||
| Description: Simplification of upper or lower cut expression. Lemma for genpdf 7575. (Contributed by Jim Kingdon, 30-Sep-2019.) | 
| Ref | Expression | 
|---|---|
| genpdflem.r | 
 | 
| genpdflem.s | 
 | 
| Ref | Expression | 
|---|---|
| genpdflem | 
 | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | 3anass 984 | 
. . . . . . . . . 10
 | |
| 2 | 1 | rexbii 2504 | 
. . . . . . . . 9
 | 
| 3 | r19.42v 2654 | 
. . . . . . . . 9
 | |
| 4 | 2, 3 | bitri 184 | 
. . . . . . . 8
 | 
| 5 | 4 | rexbii 2504 | 
. . . . . . 7
 | 
| 6 | df-rex 2481 | 
. . . . . . 7
 | |
| 7 | 5, 6 | bitri 184 | 
. . . . . 6
 | 
| 8 | anass 401 | 
. . . . . . 7
 | |
| 9 | 8 | exbii 1619 | 
. . . . . 6
 | 
| 10 | 7, 9 | bitr4i 187 | 
. . . . 5
 | 
| 11 | genpdflem.r | 
. . . . . . . . 9
 | |
| 12 | 11 | ex 115 | 
. . . . . . . 8
 | 
| 13 | 12 | pm4.71rd 394 | 
. . . . . . 7
 | 
| 14 | 13 | anbi1d 465 | 
. . . . . 6
 | 
| 15 | 14 | exbidv 1839 | 
. . . . 5
 | 
| 16 | 10, 15 | bitr4id 199 | 
. . . 4
 | 
| 17 | df-rex 2481 | 
. . . 4
 | |
| 18 | 16, 17 | bitr4di 198 | 
. . 3
 | 
| 19 | df-rex 2481 | 
. . . . . . 7
 | |
| 20 | anass 401 | 
. . . . . . . 8
 | |
| 21 | 20 | exbii 1619 | 
. . . . . . 7
 | 
| 22 | 19, 21 | bitr4i 187 | 
. . . . . 6
 | 
| 23 | genpdflem.s | 
. . . . . . . . . 10
 | |
| 24 | 23 | ex 115 | 
. . . . . . . . 9
 | 
| 25 | 24 | pm4.71rd 394 | 
. . . . . . . 8
 | 
| 26 | 25 | anbi1d 465 | 
. . . . . . 7
 | 
| 27 | 26 | exbidv 1839 | 
. . . . . 6
 | 
| 28 | 22, 27 | bitr4id 199 | 
. . . . 5
 | 
| 29 | df-rex 2481 | 
. . . . 5
 | |
| 30 | 28, 29 | bitr4di 198 | 
. . . 4
 | 
| 31 | 30 | rexbidv 2498 | 
. . 3
 | 
| 32 | 18, 31 | bitrd 188 | 
. 2
 | 
| 33 | 32 | rabbidv 2752 | 
1
 | 
| Colors of variables: wff set class | 
| Syntax hints:     | 
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1461 ax-7 1462 ax-gen 1463 ax-ie1 1507 ax-ie2 1508 ax-8 1518 ax-11 1520 ax-4 1524 ax-17 1540 ax-i9 1544 ax-ial 1548 ax-i5r 1549 ax-ext 2178 | 
| This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1475 df-sb 1777 df-clab 2183 df-cleq 2189 df-ral 2480 df-rex 2481 df-rab 2484 | 
| This theorem is referenced by: genpdf 7575 | 
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