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| Mirrors > Home > ILE Home > Th. List > nn0addcli | GIF version | ||
| Description: Closure of addition of nonnegative integers, inference form. (Contributed by Raph Levien, 10-Dec-2002.) |
| Ref | Expression |
|---|---|
| nn0addcl.1 | ⊢ 𝑀 ∈ ℕ0 |
| nn0addcl.2 | ⊢ 𝑁 ∈ ℕ0 |
| Ref | Expression |
|---|---|
| nn0addcli | ⊢ (𝑀 + 𝑁) ∈ ℕ0 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nn0addcl.1 | . 2 ⊢ 𝑀 ∈ ℕ0 | |
| 2 | nn0addcl.2 | . 2 ⊢ 𝑁 ∈ ℕ0 | |
| 3 | nn0addcl 9527 | . 2 ⊢ ((𝑀 ∈ ℕ0 ∧ 𝑁 ∈ ℕ0) → (𝑀 + 𝑁) ∈ ℕ0) | |
| 4 | 1, 2, 3 | mp2an 426 | 1 ⊢ (𝑀 + 𝑁) ∈ ℕ0 |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2203 (class class class)co 6049 + caddc 8126 ℕ0cn0 9492 |
| 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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2214 ax-sep 4227 ax-cnex 8214 ax-resscn 8215 ax-1cn 8216 ax-1re 8217 ax-icn 8218 ax-addcl 8219 ax-addrcl 8220 ax-mulcl 8221 ax-addcom 8223 ax-addass 8225 ax-i2m1 8228 ax-0id 8231 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-ral 2525 df-rex 2526 df-rab 2529 df-v 2814 df-un 3214 df-in 3216 df-ss 3223 df-sn 3694 df-pr 3695 df-op 3697 df-uni 3914 df-int 3949 df-br 4109 df-iota 5311 df-fv 5359 df-ov 6052 df-inn 9234 df-n0 9493 |
| This theorem is referenced by: numcl 9717 deccl 9719 numsucc 9744 modsubi 13110 |
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