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Mirrors > Home > ILE Home > Th. List > uzind4s | Unicode version |
Description: Induction on the upper set of integers that starts at an integer , using explicit substitution. The hypotheses are the basis and the induction step. (Contributed by NM, 4-Nov-2005.) |
Ref | Expression |
---|---|
uzind4s.1 | |
uzind4s.2 |
Ref | Expression |
---|---|
uzind4s |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dfsbcq2 2940 | . 2 | |
2 | sbequ 1820 | . 2 | |
3 | dfsbcq2 2940 | . 2 | |
4 | dfsbcq2 2940 | . 2 | |
5 | uzind4s.1 | . 2 | |
6 | nfv 1508 | . . . 4 | |
7 | nfs1v 1919 | . . . . 5 | |
8 | nfsbc1v 2955 | . . . . 5 | |
9 | 7, 8 | nfim 1552 | . . . 4 |
10 | 6, 9 | nfim 1552 | . . 3 |
11 | eleq1 2220 | . . . 4 | |
12 | sbequ12 1751 | . . . . 5 | |
13 | oveq1 5833 | . . . . . 6 | |
14 | 13 | sbceq1d 2942 | . . . . 5 |
15 | 12, 14 | imbi12d 233 | . . . 4 |
16 | 11, 15 | imbi12d 233 | . . 3 |
17 | uzind4s.2 | . . 3 | |
18 | 10, 16, 17 | chvar 1737 | . 2 |
19 | 1, 2, 3, 4, 5, 18 | uzind4 9504 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wsb 1742 wcel 2128 wsbc 2937 cfv 5172 (class class class)co 5826 c1 7735 caddc 7737 cz 9172 cuz 9444 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 604 ax-in2 605 ax-io 699 ax-5 1427 ax-7 1428 ax-gen 1429 ax-ie1 1473 ax-ie2 1474 ax-8 1484 ax-10 1485 ax-11 1486 ax-i12 1487 ax-bndl 1489 ax-4 1490 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-13 2130 ax-14 2131 ax-ext 2139 ax-sep 4084 ax-pow 4137 ax-pr 4171 ax-un 4395 ax-setind 4498 ax-cnex 7825 ax-resscn 7826 ax-1cn 7827 ax-1re 7828 ax-icn 7829 ax-addcl 7830 ax-addrcl 7831 ax-mulcl 7832 ax-addcom 7834 ax-addass 7836 ax-distr 7838 ax-i2m1 7839 ax-0lt1 7840 ax-0id 7842 ax-rnegex 7843 ax-cnre 7845 ax-pre-ltirr 7846 ax-pre-ltwlin 7847 ax-pre-lttrn 7848 ax-pre-ltadd 7850 |
This theorem depends on definitions: df-bi 116 df-3or 964 df-3an 965 df-tru 1338 df-fal 1341 df-nf 1441 df-sb 1743 df-eu 2009 df-mo 2010 df-clab 2144 df-cleq 2150 df-clel 2153 df-nfc 2288 df-ne 2328 df-nel 2423 df-ral 2440 df-rex 2441 df-reu 2442 df-rab 2444 df-v 2714 df-sbc 2938 df-dif 3104 df-un 3106 df-in 3108 df-ss 3115 df-pw 3546 df-sn 3567 df-pr 3568 df-op 3570 df-uni 3775 df-int 3810 df-br 3968 df-opab 4028 df-mpt 4029 df-id 4255 df-xp 4594 df-rel 4595 df-cnv 4596 df-co 4597 df-dm 4598 df-rn 4599 df-res 4600 df-ima 4601 df-iota 5137 df-fun 5174 df-fn 5175 df-f 5176 df-fv 5180 df-riota 5782 df-ov 5829 df-oprab 5830 df-mpo 5831 df-pnf 7916 df-mnf 7917 df-xr 7918 df-ltxr 7919 df-le 7920 df-sub 8052 df-neg 8053 df-inn 8839 df-n0 9096 df-z 9173 df-uz 9445 |
This theorem is referenced by: (None) |
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