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| Mirrors > Home > ILE Home > Th. List > nn0p1nn | Unicode version | ||
| Description: A nonnegative integer plus 1 is a positive integer. (Contributed by Raph Levien, 30-Jun-2006.) (Revised by Mario Carneiro, 16-May-2014.) |
| Ref | Expression |
|---|---|
| nn0p1nn |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 1nn 9324 |
. 2
| |
| 2 | nn0nnaddcl 9605 |
. 2
| |
| 3 | 1, 2 | mpan2 429 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 ax-sep 4251 ax-cnex 8276 ax-resscn 8277 ax-1cn 8278 ax-1re 8279 ax-icn 8280 ax-addcl 8281 ax-addrcl 8282 ax-mulcl 8283 ax-addcom 8285 ax-addass 8287 ax-i2m1 8290 ax-0id 8293 ax-rnegex 8294 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-rab 2537 df-v 2823 df-un 3224 df-in 3226 df-ss 3233 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-int 3971 df-br 4132 df-iota 5340 df-fv 5388 df-ov 6091 df-inn 9314 df-n0 9575 |
| This theorem is used by: elnn0nn 9616 elz2 9727 peano5uzti 9765 fseq1p1m1 10518 fzonn0p1 10646 nn0ennn 10891 faccl 11195 facdiv 11198 facwordi 11200 faclbnd 11201 facubnd 11205 bcm1k 11220 bcp1n 11221 bcp1nk 11222 bcpasc 11226 hashf1 11309 ccats1pfxeqrex 11509 wrdind 11516 wrd2ind 11517 ccats1pfxeqbi 11536 bcxmas 12281 efcllemp 12450 uzwodc 12839 prmfac1 12956 pcfac 13158 4sqlem12 13210 gzsumconst 14233 gsump1 14247 plycolemc 15984 log2tlbndlog2 16220 log2ublem2 16222 log2ublog2 16224 birthdaylem2 16226 chtublem 16295 bcmono 16304 bcp1ctr 16306 gausslemma2dlem3 16387 2lgslem1a 16412 depindlem1 16952 |
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