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Mirrors > Home > ILE Home > Th. List > nnppipi | Unicode version |
Description: A natural number plus a positive integer is a positive integer. (Contributed by Jim Kingdon, 10-Nov-2019.) |
Ref | Expression |
---|---|
nnppipi |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | pinn 6499 | . . 3 | |
2 | nnacl 6082 | . . 3 | |
3 | 1, 2 | sylan2 280 | . 2 |
4 | nnaword2 6110 | . . . . 5 | |
5 | 1, 4 | sylan 277 | . . . 4 |
6 | 5 | ancoms 264 | . . 3 |
7 | elni2 6504 | . . . . 5 | |
8 | 7 | simprbi 269 | . . . 4 |
9 | 8 | adantl 271 | . . 3 |
10 | 6, 9 | sseldd 3000 | . 2 |
11 | elni2 6504 | . 2 | |
12 | 3, 10, 11 | sylanbrc 408 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 102 wcel 1433 wss 2973 c0 3251 com 4331 (class class class)co 5532 coa 6021 cnpi 6462 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-in1 576 ax-in2 577 ax-io 662 ax-5 1376 ax-7 1377 ax-gen 1378 ax-ie1 1422 ax-ie2 1423 ax-8 1435 ax-10 1436 ax-11 1437 ax-i12 1438 ax-bndl 1439 ax-4 1440 ax-13 1444 ax-14 1445 ax-17 1459 ax-i9 1463 ax-ial 1467 ax-i5r 1468 ax-ext 2063 ax-coll 3893 ax-sep 3896 ax-nul 3904 ax-pow 3948 ax-pr 3964 ax-un 4188 ax-setind 4280 ax-iinf 4329 |
This theorem depends on definitions: df-bi 115 df-dc 776 df-3an 921 df-tru 1287 df-fal 1290 df-nf 1390 df-sb 1686 df-eu 1944 df-mo 1945 df-clab 2068 df-cleq 2074 df-clel 2077 df-nfc 2208 df-ne 2246 df-ral 2353 df-rex 2354 df-reu 2355 df-rab 2357 df-v 2603 df-sbc 2816 df-csb 2909 df-dif 2975 df-un 2977 df-in 2979 df-ss 2986 df-nul 3252 df-pw 3384 df-sn 3404 df-pr 3405 df-op 3407 df-uni 3602 df-int 3637 df-iun 3680 df-br 3786 df-opab 3840 df-mpt 3841 df-tr 3876 df-id 4048 df-iord 4121 df-on 4123 df-suc 4126 df-iom 4332 df-xp 4369 df-rel 4370 df-cnv 4371 df-co 4372 df-dm 4373 df-rn 4374 df-res 4375 df-ima 4376 df-iota 4887 df-fun 4924 df-fn 4925 df-f 4926 df-f1 4927 df-fo 4928 df-f1o 4929 df-fv 4930 df-ov 5535 df-oprab 5536 df-mpt2 5537 df-1st 5787 df-2nd 5788 df-recs 5943 df-irdg 5980 df-oadd 6028 df-ni 6494 |
This theorem is referenced by: nqpnq0nq 6643 prarloclemlt 6683 prarloclemlo 6684 prarloclemcalc 6692 |
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