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Mirrors > Home > ILE Home > Th. List > nnindnn | Unicode version |
Description: Principle of Mathematical Induction (inference schema). This is a counterpart to nnind 7930 designed for real number axioms which involve natural numbers (notably, axcaucvg 6974). (Contributed by Jim Kingdon, 14-Jul-2021.) (New usage is discouraged.) |
Ref | Expression |
---|---|
nntopi.n | |
nnindnn.1 | |
nnindnn.y | |
nnindnn.y1 | |
nnindnn.a | |
nnindnn.basis | |
nnindnn.step |
Ref | Expression |
---|---|
nnindnn |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nntopi.n | . . . . . . 7 | |
2 | 1 | peano1nnnn 6928 | . . . . . 6 |
3 | nnindnn.basis | . . . . . 6 | |
4 | nnindnn.1 | . . . . . . 7 | |
5 | 4 | elrab 2698 | . . . . . 6 |
6 | 2, 3, 5 | mpbir2an 849 | . . . . 5 |
7 | elrabi 2695 | . . . . . . 7 | |
8 | 1 | peano2nnnn 6929 | . . . . . . . . . 10 |
9 | 8 | a1d 22 | . . . . . . . . 9 |
10 | nnindnn.step | . . . . . . . . 9 | |
11 | 9, 10 | anim12d 318 | . . . . . . . 8 |
12 | nnindnn.y | . . . . . . . . 9 | |
13 | 12 | elrab 2698 | . . . . . . . 8 |
14 | nnindnn.y1 | . . . . . . . . 9 | |
15 | 14 | elrab 2698 | . . . . . . . 8 |
16 | 11, 13, 15 | 3imtr4g 194 | . . . . . . 7 |
17 | 7, 16 | mpcom 32 | . . . . . 6 |
18 | 17 | rgen 2374 | . . . . 5 |
19 | 1 | peano5nnnn 6966 | . . . . 5 |
20 | 6, 18, 19 | mp2an 402 | . . . 4 |
21 | 20 | sseli 2941 | . . 3 |
22 | nnindnn.a | . . . 4 | |
23 | 22 | elrab 2698 | . . 3 |
24 | 21, 23 | sylib 127 | . 2 |
25 | 24 | simprd 107 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 97 wb 98 wceq 1243 wcel 1393 cab 2026 wral 2306 crab 2310 wss 2917 cint 3615 (class class class)co 5512 c1 6890 caddc 6892 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 99 ax-ia2 100 ax-ia3 101 ax-in1 544 ax-in2 545 ax-io 630 ax-5 1336 ax-7 1337 ax-gen 1338 ax-ie1 1382 ax-ie2 1383 ax-8 1395 ax-10 1396 ax-11 1397 ax-i12 1398 ax-bndl 1399 ax-4 1400 ax-13 1404 ax-14 1405 ax-17 1419 ax-i9 1423 ax-ial 1427 ax-i5r 1428 ax-ext 2022 ax-coll 3872 ax-sep 3875 ax-nul 3883 ax-pow 3927 ax-pr 3944 ax-un 4170 ax-setind 4262 ax-iinf 4311 |
This theorem depends on definitions: df-bi 110 df-dc 743 df-3or 886 df-3an 887 df-tru 1246 df-fal 1249 df-nf 1350 df-sb 1646 df-eu 1903 df-mo 1904 df-clab 2027 df-cleq 2033 df-clel 2036 df-nfc 2167 df-ne 2206 df-ral 2311 df-rex 2312 df-reu 2313 df-rab 2315 df-v 2559 df-sbc 2765 df-csb 2853 df-dif 2920 df-un 2922 df-in 2924 df-ss 2931 df-nul 3225 df-pw 3361 df-sn 3381 df-pr 3382 df-op 3384 df-uni 3581 df-int 3616 df-iun 3659 df-br 3765 df-opab 3819 df-mpt 3820 df-tr 3855 df-eprel 4026 df-id 4030 df-po 4033 df-iso 4034 df-iord 4103 df-on 4105 df-suc 4108 df-iom 4314 df-xp 4351 df-rel 4352 df-cnv 4353 df-co 4354 df-dm 4355 df-rn 4356 df-res 4357 df-ima 4358 df-iota 4867 df-fun 4904 df-fn 4905 df-f 4906 df-f1 4907 df-fo 4908 df-f1o 4909 df-fv 4910 df-ov 5515 df-oprab 5516 df-mpt2 5517 df-1st 5767 df-2nd 5768 df-recs 5920 df-irdg 5957 df-1o 6001 df-2o 6002 df-oadd 6005 df-omul 6006 df-er 6106 df-ec 6108 df-qs 6112 df-ni 6402 df-pli 6403 df-mi 6404 df-lti 6405 df-plpq 6442 df-mpq 6443 df-enq 6445 df-nqqs 6446 df-plqqs 6447 df-mqqs 6448 df-1nqqs 6449 df-rq 6450 df-ltnqqs 6451 df-enq0 6522 df-nq0 6523 df-0nq0 6524 df-plq0 6525 df-mq0 6526 df-inp 6564 df-i1p 6565 df-iplp 6566 df-enr 6811 df-nr 6812 df-plr 6813 df-0r 6816 df-1r 6817 df-c 6895 df-1 6897 df-r 6899 df-add 6900 |
This theorem is referenced by: nntopi 6968 |
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