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| Description: Lemma for unbnn 4544. The value of the function |
| Ref | Expression |
|---|---|
| unblem.1 |
|
| unblem.2 |
|
| Ref | Expression |
|---|---|
| unblem2 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fveq2 3724 |
. . . 4
| |
| 2 | 1 | eleq1d 1540 |
. . 3
|
| 3 | fveq2 3724 |
. . . 4
| |
| 4 | 3 | eleq1d 1540 |
. . 3
|
| 5 | fveq2 3724 |
. . . 4
| |
| 6 | 5 | eleq1d 1540 |
. . 3
|
| 7 | onint 3006 |
. . . . 5
| |
| 8 | omsson 3136 |
. . . . . 6
| |
| 9 | sstr 2072 |
. . . . . 6
| |
| 10 | 8, 9 | mpan2 696 |
. . . . 5
|
| 11 | peano1 3149 |
. . . . . . . . 9
| |
| 12 | eleq1 1534 |
. . . . . . . . . . 11
| |
| 13 | 12 | rexbidv 1664 |
. . . . . . . . . 10
|
| 14 | 13 | rcla4v 1873 |
. . . . . . . . 9
|
| 15 | 11, 14 | ax-mp 7 |
. . . . . . . 8
|
| 16 | df-rex 1650 |
. . . . . . . 8
| |
| 17 | 15, 16 | sylib 198 |
. . . . . . 7
|
| 18 | pm3.26 319 |
. . . . . . . 8
| |
| 19 | 18 | 19.22i 1040 |
. . . . . . 7
|
| 20 | 17, 19 | syl 10 |
. . . . . 6
|
| 21 | ne0 2288 |
. . . . . 6
| |
| 22 | 20, 21 | sylibr 200 |
. . . . 5
|
| 23 | 7, 10, 22 | syl2an 454 |
. . . 4
|
| 24 | fr0t 3952 |
. . . . . . 7
| |
| 25 | unblem.2 |
. . . . . . . 8
| |
| 26 | 25 | fveq1i 3725 |
. . . . . . 7
|
| 27 | 24, 26 | syl5req 1520 |
. . . . . 6
|
| 28 | 27 | eleq1d 1540 |
. . . . 5
|
| 29 | 28 | ibi 592 |
. . . 4
|
| 30 | 23, 29 | syl 10 |
. . 3
|
| 31 | ax-17 971 |
. . . . . . . . . 10
| |
| 32 | ax-17 971 |
. . . . . . . . . 10
| |
| 33 | ax-17 971 |
. . . . . . . . . . . 12
| |
| 34 | unblem.1 |
. . . . . . . . . . . . . 14
| |
| 35 | 34, 32 | hbfv 3729 |
. . . . . . . . . . . . 13
|
| 36 | 35 | hbsuc 3040 |
. . . . . . . . . . . 12
|
| 37 | 33, 36 | hbdif 2161 |
. . . . . . . . . . 11
|
| 38 | 37 | hbint 2543 |
. . . . . . . . . 10
|
| 39 | suceq 3034 |
. . . . . . . . . . . 12
| |
| 40 | 39 | difeq2d 2159 |
. . . . . . . . . . 11
|
| 41 | 40 | inteqd 2538 |
. . . . . . . . . 10
|
| 42 | 31, 32, 38, 25, 41 | frsucopab 3954 |
. . . . . . . . 9
|
| 43 | 42 | eqcomd 1480 |
. . . . . . . 8
|
| 44 | 43 | eleq1d 1540 |
. . . . . . 7
|
| 45 | 44 | ex 373 |
. . . . . 6
|
| 46 | 45 | ibd 594 |
. . . . 5
|
| 47 | unblem1 4540 |
. . . . 5
| |
| 48 | 46, 47 | syl5 21 |
. . . 4
|
| 49 | 48 | exp3a 375 |
. . 3
|
| 50 | 2, 4, 6, 30, 49 | finds2 3158 |
. 2
|
| 51 | 50 | com12 11 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: unblem3 4542 unblem4 4543 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 962 ax-gen 963 ax-8 964 ax-9 965 ax-10 966 ax-11 967 ax-12 968 ax-13 969 ax-14 970 ax-17 971 ax-4 973 ax-5o 975 ax-6o 978 ax-9o 1123 ax-10o 1140 ax-16 1210 ax-11o 1218 ax-ext 1459 ax-rep 2693 ax-sep 2703 ax-nul 2710 ax-pow 2742 ax-pr 2779 ax-un 2866 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-3or 776 df-3an 777 df-ex 981 df-sb 1172 df-eu 1382 df-mo 1383 df-clab 1464 df-cleq 1469 df-clel 1472 df-ne 1587 df-ral 1649 df-rex 1650 df-rab 1652 df-v 1812 df-sbc 1942 df-dif 2049 df-un 2050 df-in 2051 df-ss 2053 df-nul 2281 df-if 2362 df-pw 2402 df-sn 2412 df-pr 2413 df-tp 2415 df-op 2416 df-uni 2504 df-int 2534 df-iun 2568 df-br 2620 df-opab 2667 df-tr 2681 df-eprel 2832 df-id 2835 df-po 2840 df-so 2850 df-fr 2917 df-we 2934 df-ord 2951 df-on 2952 df-lim 2953 df-suc 2954 df-om 3132 df-xp 3184 df-rel 3185 df-cnv 3186 df-co 3187 df-dm 3188 df-rn 3189 df-res 3190 df-ima 3191 df-fun 3192 df-fn 3193 df-fv 3198 df-rdg 3932 |