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Mirrors > Home > ILE Home > Th. List > peano2nnnn | Unicode version |
Description: A successor of a positive integer is a positive integer. This is a counterpart to peano2nn 8933 designed for real number axioms which involve to natural numbers (notably, axcaucvg 7901). (Contributed by Jim Kingdon, 14-Jul-2021.) (New usage is discouraged.) |
Ref | Expression |
---|---|
peano1nnnn.n |
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Ref | Expression |
---|---|
peano2nnnn |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | peano1nnnn.n |
. . . . . 6
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2 | 1 | eleq2i 2244 |
. . . . 5
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3 | elintg 3854 |
. . . . 5
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4 | 2, 3 | bitrid 192 |
. . . 4
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5 | 4 | ibi 176 |
. . 3
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6 | vex 2742 |
. . . . . . . 8
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7 | eleq2 2241 |
. . . . . . . . 9
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8 | eleq2 2241 |
. . . . . . . . . 10
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9 | 8 | raleqbi1dv 2681 |
. . . . . . . . 9
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10 | 7, 9 | anbi12d 473 |
. . . . . . . 8
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11 | 6, 10 | elab 2883 |
. . . . . . 7
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12 | 11 | simprbi 275 |
. . . . . 6
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13 | oveq1 5884 |
. . . . . . . 8
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14 | 13 | eleq1d 2246 |
. . . . . . 7
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15 | 14 | rspcva 2841 |
. . . . . 6
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16 | 12, 15 | sylan2 286 |
. . . . 5
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17 | 16 | expcom 116 |
. . . 4
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18 | 17 | ralimia 2538 |
. . 3
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19 | 5, 18 | syl 14 |
. 2
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20 | df-1 7821 |
. . . . 5
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21 | 1sr 7752 |
. . . . . 6
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22 | 0r 7751 |
. . . . . 6
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23 | opexg 4230 |
. . . . . 6
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24 | 21, 22, 23 | mp2an 426 |
. . . . 5
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25 | 20, 24 | eqeltri 2250 |
. . . 4
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26 | addvalex 7845 |
. . . 4
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27 | 25, 26 | mpan2 425 |
. . 3
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28 | 1 | eleq2i 2244 |
. . . 4
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29 | elintg 3854 |
. . . 4
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30 | 28, 29 | bitrid 192 |
. . 3
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31 | 27, 30 | syl 14 |
. 2
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32 | 19, 31 | mpbird 167 |
1
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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 614 ax-in2 615 ax-io 709 ax-5 1447 ax-7 1448 ax-gen 1449 ax-ie1 1493 ax-ie2 1494 ax-8 1504 ax-10 1505 ax-11 1506 ax-i12 1507 ax-bndl 1509 ax-4 1510 ax-17 1526 ax-i9 1530 ax-ial 1534 ax-i5r 1535 ax-13 2150 ax-14 2151 ax-ext 2159 ax-coll 4120 ax-sep 4123 ax-nul 4131 ax-pow 4176 ax-pr 4211 ax-un 4435 ax-setind 4538 ax-iinf 4589 |
This theorem depends on definitions: df-bi 117 df-dc 835 df-3or 979 df-3an 980 df-tru 1356 df-fal 1359 df-nf 1461 df-sb 1763 df-eu 2029 df-mo 2030 df-clab 2164 df-cleq 2170 df-clel 2173 df-nfc 2308 df-ne 2348 df-ral 2460 df-rex 2461 df-reu 2462 df-rab 2464 df-v 2741 df-sbc 2965 df-csb 3060 df-dif 3133 df-un 3135 df-in 3137 df-ss 3144 df-nul 3425 df-pw 3579 df-sn 3600 df-pr 3601 df-op 3603 df-uni 3812 df-int 3847 df-iun 3890 df-br 4006 df-opab 4067 df-mpt 4068 df-tr 4104 df-eprel 4291 df-id 4295 df-po 4298 df-iso 4299 df-iord 4368 df-on 4370 df-suc 4373 df-iom 4592 df-xp 4634 df-rel 4635 df-cnv 4636 df-co 4637 df-dm 4638 df-rn 4639 df-res 4640 df-ima 4641 df-iota 5180 df-fun 5220 df-fn 5221 df-f 5222 df-f1 5223 df-fo 5224 df-f1o 5225 df-fv 5226 df-ov 5880 df-oprab 5881 df-mpo 5882 df-1st 6143 df-2nd 6144 df-recs 6308 df-irdg 6373 df-1o 6419 df-2o 6420 df-oadd 6423 df-omul 6424 df-er 6537 df-ec 6539 df-qs 6543 df-ni 7305 df-pli 7306 df-mi 7307 df-lti 7308 df-plpq 7345 df-mpq 7346 df-enq 7348 df-nqqs 7349 df-plqqs 7350 df-mqqs 7351 df-1nqqs 7352 df-rq 7353 df-ltnqqs 7354 df-enq0 7425 df-nq0 7426 df-0nq0 7427 df-plq0 7428 df-mq0 7429 df-inp 7467 df-i1p 7468 df-iplp 7469 df-enr 7727 df-nr 7728 df-0r 7732 df-1r 7733 df-c 7819 df-1 7821 df-add 7824 |
This theorem is referenced by: nnindnn 7894 |
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