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| Mirrors > Home > MPE Home > Th. List > Mathboxes > prtlem17 | Structured version Visualization version Unicode version | ||
| Description: Lemma for prter2 34166. (Contributed by Rodolfo Medina, 15-Oct-2010.) |
| Ref | Expression |
|---|---|
| prtlem17 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-rex 2918 |
. . 3
| |
| 2 | an32 839 |
. . . . . . . 8
| |
| 3 | prtlem14 34159 |
. . . . . . . . . . 11
| |
| 4 | elequ2 2004 |
. . . . . . . . . . . 12
| |
| 5 | 4 | biimprd 238 |
. . . . . . . . . . 11
|
| 6 | 3, 5 | syl8 76 |
. . . . . . . . . 10
|
| 7 | 6 | exp4a 633 |
. . . . . . . . 9
|
| 8 | 7 | impd 447 |
. . . . . . . 8
|
| 9 | 2, 8 | syl5bir 233 |
. . . . . . 7
|
| 10 | 9 | expd 452 |
. . . . . 6
|
| 11 | 10 | imp5a 624 |
. . . . 5
|
| 12 | 11 | imp4b 613 |
. . . 4
|
| 13 | 12 | exlimdv 1861 |
. . 3
|
| 14 | 1, 13 | syl5bi 232 |
. 2
|
| 15 | 14 | ex 450 |
1
|
| Colors of variables: wff setvar class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 |
| This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ral 2917 df-rex 2918 df-v 3202 df-dif 3577 df-in 3581 df-nul 3916 df-prt 34157 |
| This theorem is referenced by: prtlem18 34162 |
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