| Mathbox for Alan Sare |
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| Description: Virtual deduction proof of pwtr 16647. |
| Ref | Expression |
|---|---|
| pwtrVD |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | dftr2 3413 |
. . 3
| |
| 2 | idn1 16484 |
. . . . . . 7
| |
| 3 | idn2 16509 |
. . . . . . . . . 10
| |
| 4 | simpr 350 |
. . . . . . . . . 10
| |
| 5 | 3, 4 | e2 16521 |
. . . . . . . . 9
|
| 6 | elpwi 3039 |
. . . . . . . . 9
| |
| 7 | 5, 6 | e2 16521 |
. . . . . . . 8
|
| 8 | simpl 346 |
. . . . . . . . 9
| |
| 9 | 3, 8 | e2 16521 |
. . . . . . . 8
|
| 10 | ssel 2615 |
. . . . . . . 8
| |
| 11 | 7, 9, 10 | e22 16561 |
. . . . . . 7
|
| 12 | trss 3421 |
. . . . . . 7
| |
| 13 | 2, 11, 12 | e12 16593 |
. . . . . 6
|
| 14 | visset 2295 |
. . . . . . 7
| |
| 15 | 14 | elpw 3037 |
. . . . . 6
|
| 16 | 13, 15 | e2bir 16523 |
. . . . 5
|
| 17 | 16 | in2 16506 |
. . . 4
|
| 18 | 17 | gen12 16513 |
. . 3
|
| 19 | bi2 166 |
. . 3
| |
| 20 | 1, 18, 19 | e01 16581 |
. 2
|
| 21 | 20 | in1 16481 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 1304 ax-gen 1305 ax-8 1306 ax-9 1307 ax-10 1308 ax-11 1309 ax-12 1310 ax-17 1317 ax-4 1319 ax-5o 1321 ax-6o 1324 ax-9o 1481 ax-10o 1500 ax-16 1580 ax-11o 1588 ax-ext 1865 |
| This theorem depends on definitions: df-bi 164 df-or 241 df-an 242 df-ex 1327 df-sb 1536 df-clab 1872 df-cleq 1877 df-clel 1880 df-ral 2109 df-v 2294 df-in 2603 df-ss 2605 df-pw 3035 df-uni 3178 df-tr 3412 df-vd1 16480 df-vd2 16489 |