| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > nn0addcl | Structured version Visualization version GIF 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 | ⊢ ((𝑀 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0) → (𝑀 + 𝑁) ∈ ℕ0) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nnsscn 12162 | . 2 ⊢ ℕ ⊆ ℂ | |
| 2 | id 22 | . . 3 ⊢ (ℕ ⊆ ℂ → ℕ ⊆ ℂ) | |
| 3 | df-n0 12414 | . . 3 ⊢ ℕ0 = (ℕ ∪ {0}) | |
| 4 | nnaddcl 12180 | . . . 4 ⊢ ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ) → (𝑀 + 𝑁) ∈ ℕ) | |
| 5 | 4 | adantl 481 | . . 3 ⊢ ((ℕ ⊆ ℂ ∧ (𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ)) → (𝑀 + 𝑁) ∈ ℕ) |
| 6 | 2, 3, 5 | un0addcl 12446 | . 2 ⊢ ((ℕ ⊆ ℂ ∧ (𝑀 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0)) → (𝑀 + 𝑁) ∈ ℕ0) |
| 7 | 1, 6 | mpan 691 | 1 ⊢ ((𝑀 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0) → (𝑀 + 𝑁) ∈ ℕ0) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 ∈ wcel 2114 ⊆ wss 3903 (class class class)co 7368 ℂcc 11036 + caddc 11041 ℕcn 12157 ℕ0cn0 12413 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5243 ax-nul 5253 ax-pow 5312 ax-pr 5379 ax-un 7690 ax-resscn 11095 ax-1cn 11096 ax-icn 11097 ax-addcl 11098 ax-addrcl 11099 ax-mulcl 11100 ax-mulrcl 11101 ax-mulcom 11102 ax-addass 11103 ax-mulass 11104 ax-distr 11105 ax-i2m1 11106 ax-1ne0 11107 ax-1rid 11108 ax-rnegex 11109 ax-rrecex 11110 ax-cnre 11111 ax-pre-lttri 11112 ax-pre-lttrn 11113 ax-pre-ltadd 11114 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-reu 3353 df-rab 3402 df-v 3444 df-sbc 3743 df-csb 3852 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-pss 3923 df-nul 4288 df-if 4482 df-pw 4558 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-iun 4950 df-br 5101 df-opab 5163 df-mpt 5182 df-tr 5208 df-id 5527 df-eprel 5532 df-po 5540 df-so 5541 df-fr 5585 df-we 5587 df-xp 5638 df-rel 5639 df-cnv 5640 df-co 5641 df-dm 5642 df-rn 5643 df-res 5644 df-ima 5645 df-pred 6267 df-ord 6328 df-on 6329 df-lim 6330 df-suc 6331 df-iota 6456 df-fun 6502 df-fn 6503 df-f 6504 df-f1 6505 df-fo 6506 df-f1o 6507 df-fv 6508 df-ov 7371 df-om 7819 df-2nd 7944 df-frecs 8233 df-wrecs 8264 df-recs 8313 df-rdg 8351 df-er 8645 df-en 8896 df-dom 8897 df-sdom 8898 df-pnf 11180 df-mnf 11181 df-ltxr 11183 df-nn 12158 df-n0 12414 |
| This theorem is referenced by: nn0addcli 12450 peano2nn0 12453 nn0addcld 12478 nn0readdcl 12480 xnn0xaddcl 13162 difelfznle 13570 elfzodifsumelfzo 13659 modsumfzodifsn 13879 expadd 14039 faclbnd4lem3 14230 faclbnd5 14233 faclbnd6 14234 facavg 14236 ccatlen 14510 ccatrn 14525 ccatalpha 14529 swrdccat2 14605 swrdswrdlem 14639 swrdswrd 14640 swrdccatin1 14660 pfxccatin12lem3 14667 splfv2a 14691 repswswrd 14719 repswccat 14721 cshwcsh2id 14763 fsumnn0cl 15671 bcxmas 15770 nn0risefaccl 15957 eftlub 16046 4sqlem1 16888 psgnunilem2 19436 sylow1lem1 19539 nn0subm 21389 expmhm 21403 psrbagaddcl 21892 dvnadd 25899 ply1divex 26110 coemullem 26223 coemulhi 26227 plymul0or 26256 chtublem 27190 2sqlem7 27403 crctcshwlkn0lem4 29898 clwwlkccatlem 30076 mhphflem 42954 fmtnofac2lem 47928 nn0mnd 48539 ply1mulgsumlem1 48746 |
| Copyright terms: Public domain | W3C validator |