| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > unsnfidcex | Unicode version | ||
| Description: The |
| Ref | Expression |
|---|---|
| unsnfidcex |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | isfi 7037 |
. . . . 5
| |
| 2 | 1 | biimpi 120 |
. . . 4
|
| 3 | 2 | 3ad2ant1 1049 |
. . 3
|
| 4 | isfi 7037 |
. . . . . . 7
| |
| 5 | 4 | biimpi 120 |
. . . . . 6
|
| 6 | 5 | 3ad2ant3 1051 |
. . . . 5
|
| 7 | 6 | adantr 276 |
. . . 4
|
| 8 | simprr 537 |
. . . . . . . . . 10
| |
| 9 | 8 | ad3antrrr 496 |
. . . . . . . . 9
|
| 10 | simplr 533 |
. . . . . . . . 9
| |
| 11 | 9, 10 | breqtrrd 4153 |
. . . . . . . 8
|
| 12 | simprr 537 |
. . . . . . . . . 10
| |
| 13 | 12 | ad2antrr 492 |
. . . . . . . . 9
|
| 14 | 13 | ensymd 7060 |
. . . . . . . 8
|
| 15 | entr 7061 |
. . . . . . . 8
| |
| 16 | 11, 14, 15 | syl2anc 415 |
. . . . . . 7
|
| 17 | simp1 1028 |
. . . . . . . . 9
| |
| 18 | 17 | ad4antr 498 |
. . . . . . . 8
|
| 19 | simpr 110 |
. . . . . . . . 9
| |
| 20 | simp2 1029 |
. . . . . . . . . 10
| |
| 21 | 20 | ad4antr 498 |
. . . . . . . . 9
|
| 22 | 19, 21 | eldifd 3230 |
. . . . . . . 8
|
| 23 | php5fin 7176 |
. . . . . . . 8
| |
| 24 | 18, 22, 23 | syl2anc 415 |
. . . . . . 7
|
| 25 | 16, 24 | pm2.65da 671 |
. . . . . 6
|
| 26 | 25 | orcd 745 |
. . . . 5
|
| 27 | 8 | ad3antrrr 496 |
. . . . . . . . . . 11
|
| 28 | 27 | ensymd 7060 |
. . . . . . . . . 10
|
| 29 | snprc 3770 |
. . . . . . . . . . . . . . 15
| |
| 30 | 29 | biimpi 120 |
. . . . . . . . . . . . . 14
|
| 31 | 30 | uneq2d 3383 |
. . . . . . . . . . . . 13
|
| 32 | un0 3556 |
. . . . . . . . . . . . 13
| |
| 33 | 31, 32 | eqtrdi 2287 |
. . . . . . . . . . . 12
|
| 34 | 33 | adantl 277 |
. . . . . . . . . . 11
|
| 35 | 12 | ad2antrr 492 |
. . . . . . . . . . 11
|
| 36 | 34, 35 | eqbrtrrd 4149 |
. . . . . . . . . 10
|
| 37 | entr 7061 |
. . . . . . . . . 10
| |
| 38 | 28, 36, 37 | syl2anc 415 |
. . . . . . . . 9
|
| 39 | simplrl 541 |
. . . . . . . . . . 11
| |
| 40 | 39 | ad2antrr 492 |
. . . . . . . . . 10
|
| 41 | simprl 535 |
. . . . . . . . . . 11
| |
| 42 | 41 | ad2antrr 492 |
. . . . . . . . . 10
|
| 43 | nneneq 7148 |
. . . . . . . . . 10
| |
| 44 | 40, 42, 43 | syl2anc 415 |
. . . . . . . . 9
|
| 45 | 38, 44 | mpbid 147 |
. . . . . . . 8
|
| 46 | 45 | eqcomd 2244 |
. . . . . . 7
|
| 47 | simplr 533 |
. . . . . . 7
| |
| 48 | 46, 47 | pm2.65da 671 |
. . . . . 6
|
| 49 | 48 | olcd 746 |
. . . . 5
|
| 50 | nndceq 6762 |
. . . . . . 7
| |
| 51 | 41, 39, 50 | syl2anc 415 |
. . . . . 6
|
| 52 | exmiddc 848 |
. . . . . 6
| |
| 53 | 51, 52 | syl 14 |
. . . . 5
|
| 54 | 26, 49, 53 | mpjaodan 810 |
. . . 4
|
| 55 | 7, 54 | rexlimddv 2673 |
. . 3
|
| 56 | 3, 55 | rexlimddv 2673 |
. 2
|
| 57 | df-dc 847 |
. 2
| |
| 58 | 56, 57 | sylibr 134 |
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-in1 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4244 ax-nul 4254 ax-pow 4306 ax-pr 4341 ax-un 4573 ax-setind 4679 ax-iinf 4730 |
| This theorem depends on definitions: df-bi 117 df-dc 847 df-3or 1010 df-3an 1011 df-tru 1405 df-fal 1408 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-ral 2533 df-rex 2534 df-rab 2537 df-v 2823 df-sbc 3052 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-nul 3521 df-pw 3687 df-sn 3711 df-pr 3712 df-op 3714 df-uni 3931 df-int 3966 df-br 4126 df-opab 4188 df-tr 4225 df-id 4433 df-iord 4506 df-on 4508 df-suc 4511 df-iom 4733 df-xp 4775 df-rel 4776 df-cnv 4777 df-co 4778 df-dm 4779 df-rn 4780 df-res 4781 df-ima 4782 df-iota 5332 df-fun 5374 df-fn 5375 df-f 5376 df-f1 5377 df-fo 5378 df-f1o 5379 df-fv 5380 df-1o 6677 df-er 6797 df-en 7013 df-fin 7015 |
| This theorem is referenced by: (None) |
| Copyright terms: Public domain | W3C validator |