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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 9318 |
. 2
| |
| 2 | id 19 |
. . 3
| |
| 3 | df-n0 9575 |
. . 3
| |
| 4 | nnaddcl 9333 |
. . . 4
| |
| 5 | 4 | adantl 277 |
. . 3
|
| 6 | 2, 3, 5 | un0addcl 9607 |
. 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 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 |
| 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: nn0addcli 9611 peano2nn0 9614 nn0addcld 9635 nn0readdcl 9637 difelfznle 10559 elfzodifsumelfzo 10636 expadd 11039 faclbnd6 11204 facavg 11206 ccatlen 11385 ccatrn 11399 ccatalpha 11403 swrdccat2 11465 swrdswrdlem 11498 swrdswrd 11499 swrdccatin1 11519 pfxccatin12lem3 11526 fsumnn0cl 12195 bcxmas 12281 eftlub 12482 4sqlem1 13196 nn0subm 15029 psrbagaddclfi 15170 mplsubgfilemcl 15215 2sqlem7 16445 clwwlkccatlem 16846 |
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