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| Mirrors > Home > ILE Home > Th. List > decnncl2 | GIF version | ||
| Description: Closure for a decimal integer (zero units place). (Contributed by Mario Carneiro, 17-Apr-2015.) (Revised by AV, 6-Sep-2021.) |
| Ref | Expression |
|---|---|
| decnncl2.1 | ⊢ 𝐴 ∈ ℕ |
| Ref | Expression |
|---|---|
| decnncl2 | ⊢ ;𝐴0 ∈ ℕ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | dfdec10 9759 | . 2 ⊢ ;𝐴0 = ((;10 · 𝐴) + 0) | |
| 2 | 10nn 9771 | . . 3 ⊢ ;10 ∈ ℕ | |
| 3 | decnncl2.1 | . . 3 ⊢ 𝐴 ∈ ℕ | |
| 4 | 2, 3 | numnncl2 9778 | . 2 ⊢ ((;10 · 𝐴) + 0) ∈ ℕ |
| 5 | 1, 4 | eqeltri 2311 | 1 ⊢ ;𝐴0 ∈ ℕ |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2209 (class class class)co 6075 0cc0 8169 1c1 8170 + caddc 8172 · cmul 8174 ℕcn 9283 ;cdc 9756 |
| 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 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 ax-sep 4244 ax-cnex 8260 ax-resscn 8261 ax-1cn 8262 ax-1re 8263 ax-icn 8264 ax-addcl 8265 ax-addrcl 8266 ax-mulcl 8267 ax-mulcom 8270 ax-addass 8271 ax-mulass 8272 ax-distr 8273 ax-1rid 8276 ax-0id 8277 ax-cnre 8280 |
| This theorem depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-rab 2537 df-v 2823 df-un 3224 df-in 3226 df-ss 3233 df-sn 3711 df-pr 3712 df-op 3714 df-uni 3931 df-int 3966 df-br 4126 df-iota 5332 df-fv 5380 df-ov 6078 df-inn 9284 df-2 9342 df-3 9343 df-4 9344 df-5 9345 df-6 9346 df-7 9347 df-8 9348 df-9 9349 df-dec 9757 |
| This theorem is referenced by: 3dec 11130 |
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