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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 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 1nn 8993 |
. 2
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2 | nn0nnaddcl 9271 |
. 2
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3 | 1, 2 | mpan2 425 |
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-io 710 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-ext 2175 ax-sep 4147 ax-cnex 7963 ax-resscn 7964 ax-1cn 7965 ax-1re 7966 ax-icn 7967 ax-addcl 7968 ax-addrcl 7969 ax-mulcl 7970 ax-addcom 7972 ax-addass 7974 ax-i2m1 7977 ax-0id 7980 ax-rnegex 7981 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1472 df-sb 1774 df-clab 2180 df-cleq 2186 df-clel 2189 df-nfc 2325 df-ral 2477 df-rex 2478 df-rab 2481 df-v 2762 df-un 3157 df-in 3159 df-ss 3166 df-sn 3624 df-pr 3625 df-op 3627 df-uni 3836 df-int 3871 df-br 4030 df-iota 5215 df-fv 5262 df-ov 5921 df-inn 8983 df-n0 9241 |
This theorem is referenced by: elnn0nn 9282 elz2 9388 peano5uzti 9425 fseq1p1m1 10160 fzonn0p1 10278 nn0ennn 10504 faccl 10806 facdiv 10809 facwordi 10811 faclbnd 10812 facubnd 10816 bcm1k 10831 bcp1n 10832 bcp1nk 10833 bcpasc 10837 bcxmas 11632 efcllemp 11801 uzwodc 12174 prmfac1 12290 pcfac 12488 4sqlem12 12540 gsumfzconst 13411 gausslemma2dlem3 15179 |
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