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| Mirrors > Home > ILE Home > Th. List > numnncl | GIF version | ||
| Description: Closure for a numeral (with units place). (Contributed by Mario Carneiro, 18-Feb-2014.) |
| Ref | Expression |
|---|---|
| numnncl.1 | ⊢ 𝑇 ∈ ℕ0 |
| numnncl.2 | ⊢ 𝐴 ∈ ℕ0 |
| numnncl.3 | ⊢ 𝐵 ∈ ℕ |
| Ref | Expression |
|---|---|
| numnncl | ⊢ ((𝑇 · 𝐴) + 𝐵) ∈ ℕ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | numnncl.1 | . . 3 ⊢ 𝑇 ∈ ℕ0 | |
| 2 | numnncl.2 | . . 3 ⊢ 𝐴 ∈ ℕ0 | |
| 3 | 1, 2 | nn0mulcli 9530 | . 2 ⊢ (𝑇 · 𝐴) ∈ ℕ0 |
| 4 | numnncl.3 | . 2 ⊢ 𝐵 ∈ ℕ | |
| 5 | nn0nnaddcl 9523 | . 2 ⊢ (((𝑇 · 𝐴) ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → ((𝑇 · 𝐴) + 𝐵) ∈ ℕ) | |
| 6 | 3, 4, 5 | mp2an 426 | 1 ⊢ ((𝑇 · 𝐴) + 𝐵) ∈ ℕ |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2203 (class class class)co 6049 + caddc 8126 · cmul 8128 ℕcn 9233 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-in1 619 ax-in2 620 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-14 2206 ax-ext 2214 ax-sep 4227 ax-pow 4286 ax-pr 4321 ax-setind 4658 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-mulcom 8224 ax-addass 8225 ax-mulass 8226 ax-distr 8227 ax-i2m1 8228 ax-1rid 8230 ax-0id 8231 ax-rnegex 8232 ax-cnre 8234 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1812 df-eu 2083 df-mo 2084 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-ne 2413 df-ral 2525 df-rex 2526 df-reu 2527 df-rab 2529 df-v 2814 df-sbc 3042 df-dif 3212 df-un 3214 df-in 3216 df-ss 3223 df-pw 3670 df-sn 3694 df-pr 3695 df-op 3697 df-uni 3914 df-int 3949 df-br 4109 df-opab 4171 df-id 4413 df-xp 4754 df-rel 4755 df-cnv 4756 df-co 4757 df-dm 4758 df-iota 5311 df-fun 5353 df-fv 5359 df-riota 6002 df-ov 6052 df-oprab 6053 df-mpo 6054 df-sub 8442 df-inn 9234 df-n0 9493 |
| This theorem is referenced by: decnncl 9724 |
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