| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > nnmulcld | GIF version | ||
| Description: Closure of multiplication of positive integers. (Contributed by Mario Carneiro, 27-May-2016.) |
| Ref | Expression |
|---|---|
| nnge1d.1 | ⊢ (𝜑 → 𝐴 ∈ ℕ) |
| nnmulcld.2 | ⊢ (𝜑 → 𝐵 ∈ ℕ) |
| Ref | Expression |
|---|---|
| nnmulcld | ⊢ (𝜑 → (𝐴 · 𝐵) ∈ ℕ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nnge1d.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℕ) | |
| 2 | nnmulcld.2 | . 2 ⊢ (𝜑 → 𝐵 ∈ ℕ) | |
| 3 | nnmulcl 9142 | . 2 ⊢ ((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ) → (𝐴 · 𝐵) ∈ ℕ) | |
| 4 | 1, 2, 3 | syl2anc 411 | 1 ⊢ (𝜑 → (𝐴 · 𝐵) ∈ ℕ) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∈ wcel 2200 (class class class)co 6007 · cmul 8015 ℕcn 9121 |
| 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 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-ext 2211 ax-sep 4202 ax-cnex 8101 ax-resscn 8102 ax-1cn 8103 ax-1re 8104 ax-icn 8105 ax-addcl 8106 ax-addrcl 8107 ax-mulcl 8108 ax-mulcom 8111 ax-addass 8112 ax-mulass 8113 ax-distr 8114 ax-1rid 8117 ax-cnre 8121 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-nf 1507 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ral 2513 df-rex 2514 df-rab 2517 df-v 2801 df-un 3201 df-in 3203 df-ss 3210 df-sn 3672 df-pr 3673 df-op 3675 df-uni 3889 df-int 3924 df-br 4084 df-iota 5278 df-fv 5326 df-ov 6010 df-inn 9122 |
| This theorem is referenced by: qbtwnre 10488 bcval 10983 bcm1k 10994 bcp1n 10995 permnn 11005 cvg1nlemcxze 11508 cvg1nlemf 11509 cvg1nlemcau 11510 cvg1nlemres 11511 trireciplem 12026 efaddlem 12200 eftlub 12216 eirraplem 12303 modmulconst 12349 lcmval 12600 oddpwdclemxy 12706 oddpwdclemdc 12710 sqpweven 12712 2sqpwodd 12713 crth 12761 phimullem 12762 modprm0 12792 pcqmul 12841 pcaddlem 12877 pcbc 12889 oddprmdvds 12892 pockthlem 12894 pockthg 12895 4sqlem13m 12941 4sqlem14 12942 4sqlem17 12945 4sqlem18 12946 evenennn 12979 mpodvdsmulf1o 15679 fsumdvdsmul 15680 sgmmul 15685 gausslemma2dlem1a 15752 lgseisenlem2 15765 lgseisenlem4 15767 lgsquadlemsfi 15769 lgsquadlem2 15772 lgsquadlem3 15773 lgsquad2lem2 15776 2sqlem6 15814 |
| Copyright terms: Public domain | W3C validator |