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| Description: Lemma for unbnn 4690. The value of the function |
| Ref | Expression |
|---|---|
| unblem.1 |
|
| unblem.2 |
|
| Ref | Expression |
|---|---|
| unblem2 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fveq2 3835 |
. . . 4
| |
| 2 | 1 | eleq1d 1583 |
. . 3
|
| 3 | fveq2 3835 |
. . . 4
| |
| 4 | 3 | eleq1d 1583 |
. . 3
|
| 5 | fveq2 3835 |
. . . 4
| |
| 6 | 5 | eleq1d 1583 |
. . 3
|
| 7 | onint 3152 |
. . . . 5
| |
| 8 | omsson 3223 |
. . . . . 6
| |
| 9 | sstr 2124 |
. . . . . 6
| |
| 10 | 8, 9 | mpan2 700 |
. . . . 5
|
| 11 | peano1 3237 |
. . . . . . . . 9
| |
| 12 | eleq1 1577 |
. . . . . . . . . . 11
| |
| 13 | 12 | rexbidv 1710 |
. . . . . . . . . 10
|
| 14 | 13 | rcla4v 1919 |
. . . . . . . . 9
|
| 15 | 11, 14 | ax-mp 7 |
. . . . . . . 8
|
| 16 | df-rex 1696 |
. . . . . . . 8
| |
| 17 | 15, 16 | sylib 196 |
. . . . . . 7
|
| 18 | pm3.26 317 |
. . . . . . . 8
| |
| 19 | 18 | 19.22i 1076 |
. . . . . . 7
|
| 20 | 17, 19 | syl 10 |
. . . . . 6
|
| 21 | n0 2341 |
. . . . . 6
| |
| 22 | 20, 21 | sylibr 198 |
. . . . 5
|
| 23 | 7, 10, 22 | syl2an 456 |
. . . 4
|
| 24 | fr0g 4253 |
. . . . . . 7
| |
| 25 | unblem.2 |
. . . . . . . 8
| |
| 26 | 25 | fveq1i 3836 |
. . . . . . 7
|
| 27 | 24, 26 | syl5req 1563 |
. . . . . 6
|
| 28 | 27 | eleq1d 1583 |
. . . . 5
|
| 29 | 28 | ibi 595 |
. . . 4
|
| 30 | 23, 29 | syl 10 |
. . 3
|
| 31 | ax-17 1007 |
. . . . . . . . . 10
| |
| 32 | ax-17 1007 |
. . . . . . . . . 10
| |
| 33 | ax-17 1007 |
. . . . . . . . . . . 12
| |
| 34 | unblem.1 |
. . . . . . . . . . . . . 14
| |
| 35 | 34, 32 | hbfv 3840 |
. . . . . . . . . . . . 13
|
| 36 | 35 | hbsuc 3044 |
. . . . . . . . . . . 12
|
| 37 | 33, 36 | hbdif 2213 |
. . . . . . . . . . 11
|
| 38 | 37 | hbint 2610 |
. . . . . . . . . 10
|
| 39 | suceq 3038 |
. . . . . . . . . . . 12
| |
| 40 | 39 | difeq2d 2211 |
. . . . . . . . . . 11
|
| 41 | 40 | inteqd 2605 |
. . . . . . . . . 10
|
| 42 | 31, 32, 38, 25, 41 | frsucopab 4255 |
. . . . . . . . 9
|
| 43 | 42 | eqcomd 1523 |
. . . . . . . 8
|
| 44 | 43 | eleq1d 1583 |
. . . . . . 7
|
| 45 | 44 | ex 371 |
. . . . . 6
|
| 46 | 45 | ibd 597 |
. . . . 5
|
| 47 | unblem1 4686 |
. . . . 5
| |
| 48 | 46, 47 | syl5 21 |
. . . 4
|
| 49 | 48 | exp3a 374 |
. . 3
|
| 50 | 2, 4, 6, 30, 49 | finds2 3246 |
. 2
|
| 51 | 50 | com12 11 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: unblem3 4688 unblem4 4689 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 998 ax-gen 999 ax-8 1000 ax-9 1001 ax-10 1002 ax-11 1003 ax-12 1004 ax-13 1005 ax-14 1006 ax-17 1007 ax-4 1009 ax-5o 1011 ax-6o 1014 ax-9o 1159 ax-10o 1177 ax-16 1247 ax-11o 1255 ax-ext 1500 ax-rep 2767 ax-sep 2777 ax-nul 2784 ax-pow 2818 ax-pr 2855 ax-un 3089 |
| This theorem depends on definitions: df-bi 145 df-or 222 df-an 223 df-3or 782 df-3an 783 df-ex 1017 df-sb 1209 df-eu 1421 df-mo 1422 df-clab 1506 df-cleq 1511 df-clel 1514 df-ne 1630 df-ral 1695 df-rex 1696 df-rab 1698 df-v 1858 df-sbc 1987 df-csb 2052 df-dif 2101 df-un 2102 df-in 2103 df-ss 2105 df-nul 2333 df-if 2416 df-pw 2459 df-sn 2470 df-pr 2471 df-tp 2473 df-op 2474 df-uni 2570 df-int 2601 df-iun 2635 df-br 2693 df-opab 2741 df-tr 2755 df-eprel 2910 df-id 2913 df-po 2918 df-so 2929 df-fr 2947 df-we 2962 df-ord 2978 df-on 2979 df-lim 2980 df-suc 2981 df-om 3219 df-xp 3265 df-rel 3266 df-cnv 3267 df-co 3268 df-dm 3269 df-rn 3270 df-res 3271 df-ima 3272 df-fun 3273 df-fn 3274 df-fv 3279 df-rdg 4233 |