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| Mirrors > Home > ILE Home > Th. List > nn0addcl | Unicode version | ||
| Description: Closure of addition of nonnegative integers. (Contributed by Raph Levien, 10-Dec-2002.) (Proof shortened by Mario Carneiro, 17-Jul-2014.) |
| Ref | Expression |
|---|---|
| nn0addcl |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nnsscn 9311 |
. 2
| |
| 2 | id 19 |
. . 3
| |
| 3 | df-n0 9568 |
. . 3
| |
| 4 | nnaddcl 9326 |
. . . 4
| |
| 5 | 4 | adantl 277 |
. . 3
|
| 6 | 2, 3, 5 | un0addcl 9600 |
. 2
|
| 7 | 1, 6 | mpan 428 |
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 4249 ax-cnex 8270 ax-resscn 8271 ax-1cn 8272 ax-1re 8273 ax-icn 8274 ax-addcl 8275 ax-addrcl 8276 ax-mulcl 8277 ax-addcom 8279 ax-addass 8281 ax-i2m1 8284 ax-0id 8287 |
| 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 4131 df-iota 5337 df-fv 5385 df-ov 6088 df-inn 9307 df-n0 9568 |
| This theorem is used by: nn0addcli 9604 peano2nn0 9607 nn0addcld 9628 nn0readdcl 9630 difelfznle 10552 elfzodifsumelfzo 10629 expadd 11031 faclbnd6 11196 facavg 11198 ccatlen 11377 ccatrn 11391 ccatalpha 11395 swrdccat2 11457 swrdswrdlem 11490 swrdswrd 11491 swrdccatin1 11511 pfxccatin12lem3 11518 fsumnn0cl 12186 bcxmas 12272 eftlub 12473 4sqlem1 13187 nn0subm 14969 psrbagaddclfi 15110 mplsubgfilemcl 15139 2sqlem7 16338 clwwlkccatlem 16739 |
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