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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 8718 | . 2 | |
2 | id 19 | . . 3 | |
3 | df-n0 8971 | . . 3 | |
4 | nnaddcl 8733 | . . . 4 | |
5 | 4 | adantl 275 | . . 3 |
6 | 2, 3, 5 | un0addcl 9003 | . 2 |
7 | 1, 6 | mpan 420 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wcel 1480 wss 3066 (class class class)co 5767 cc 7611 caddc 7616 cn 8713 cn0 8970 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2119 ax-sep 4041 ax-cnex 7704 ax-resscn 7705 ax-1cn 7706 ax-1re 7707 ax-icn 7708 ax-addcl 7709 ax-addrcl 7710 ax-mulcl 7711 ax-addcom 7713 ax-addass 7715 ax-i2m1 7718 ax-0id 7721 |
This theorem depends on definitions: df-bi 116 df-3an 964 df-tru 1334 df-nf 1437 df-sb 1736 df-clab 2124 df-cleq 2130 df-clel 2133 df-nfc 2268 df-ral 2419 df-rex 2420 df-rab 2423 df-v 2683 df-un 3070 df-in 3072 df-ss 3079 df-sn 3528 df-pr 3529 df-op 3531 df-uni 3732 df-int 3767 df-br 3925 df-iota 5083 df-fv 5126 df-ov 5770 df-inn 8714 df-n0 8971 |
This theorem is referenced by: nn0addcli 9007 peano2nn0 9010 nn0addcld 9027 nn0readdcl 9029 difelfznle 9905 elfzodifsumelfzo 9971 expadd 10328 faclbnd6 10483 facavg 10485 fsumnn0cl 11165 bcxmas 11251 eftlub 11385 |
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