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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 9437 | . 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 2202 (class class class)co 6018 + caddc 8035 ℕ0cn0 9402 |
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 ax-sep 4207 ax-cnex 8123 ax-resscn 8124 ax-1cn 8125 ax-1re 8126 ax-icn 8127 ax-addcl 8128 ax-addrcl 8129 ax-mulcl 8130 ax-addcom 8132 ax-addass 8134 ax-i2m1 8137 ax-0id 8140 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ral 2515 df-rex 2516 df-rab 2519 df-v 2804 df-un 3204 df-in 3206 df-ss 3213 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-int 3929 df-br 4089 df-iota 5286 df-fv 5334 df-ov 6021 df-inn 9144 df-n0 9403 |
| This theorem is referenced by: numcl 9623 deccl 9625 numsucc 9650 modsubi 12994 |
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