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| Mirrors > Home > ILE Home > Th. List > mulcanenq | GIF version | ||
| Description: Lemma for distributive law: cancellation of common factor. (Contributed by NM, 2-Sep-1995.) (Revised by Mario Carneiro, 8-May-2013.) |
| Ref | Expression |
|---|---|
| mulcanenq | ⊢ ((𝐴 ∈ N ∧ 𝐵 ∈ N ∧ 𝐶 ∈ N) → 〈(𝐴 ·N 𝐵), (𝐴 ·N 𝐶)〉 ~Q 〈𝐵, 𝐶〉) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | simp1 1028 | . . 3 ⊢ ((𝐴 ∈ N ∧ 𝐵 ∈ N ∧ 𝐶 ∈ N) → 𝐴 ∈ N) | |
| 2 | simp2 1029 | . . 3 ⊢ ((𝐴 ∈ N ∧ 𝐵 ∈ N ∧ 𝐶 ∈ N) → 𝐵 ∈ N) | |
| 3 | simp3 1030 | . . 3 ⊢ ((𝐴 ∈ N ∧ 𝐵 ∈ N ∧ 𝐶 ∈ N) → 𝐶 ∈ N) | |
| 4 | mulcompig 7704 | . . . 4 ⊢ ((𝑥 ∈ N ∧ 𝑦 ∈ N) → (𝑥 ·N 𝑦) = (𝑦 ·N 𝑥)) | |
| 5 | 4 | adantl 277 | . . 3 ⊢ (((𝐴 ∈ N ∧ 𝐵 ∈ N ∧ 𝐶 ∈ N) ∧ (𝑥 ∈ N ∧ 𝑦 ∈ N)) → (𝑥 ·N 𝑦) = (𝑦 ·N 𝑥)) |
| 6 | mulasspig 7705 | . . . 4 ⊢ ((𝑥 ∈ N ∧ 𝑦 ∈ N ∧ 𝑧 ∈ N) → ((𝑥 ·N 𝑦) ·N 𝑧) = (𝑥 ·N (𝑦 ·N 𝑧))) | |
| 7 | 6 | adantl 277 | . . 3 ⊢ (((𝐴 ∈ N ∧ 𝐵 ∈ N ∧ 𝐶 ∈ N) ∧ (𝑥 ∈ N ∧ 𝑦 ∈ N ∧ 𝑧 ∈ N)) → ((𝑥 ·N 𝑦) ·N 𝑧) = (𝑥 ·N (𝑦 ·N 𝑧))) |
| 8 | 1, 2, 3, 5, 7 | caov32d 6273 | . 2 ⊢ ((𝐴 ∈ N ∧ 𝐵 ∈ N ∧ 𝐶 ∈ N) → ((𝐴 ·N 𝐵) ·N 𝐶) = ((𝐴 ·N 𝐶) ·N 𝐵)) |
| 9 | mulclpi 7701 | . . . . . 6 ⊢ ((𝐴 ∈ N ∧ 𝐵 ∈ N) → (𝐴 ·N 𝐵) ∈ N) | |
| 10 | mulclpi 7701 | . . . . . 6 ⊢ ((𝐴 ∈ N ∧ 𝐶 ∈ N) → (𝐴 ·N 𝐶) ∈ N) | |
| 11 | 9, 10 | anim12i 338 | . . . . 5 ⊢ (((𝐴 ∈ N ∧ 𝐵 ∈ N) ∧ (𝐴 ∈ N ∧ 𝐶 ∈ N)) → ((𝐴 ·N 𝐵) ∈ N ∧ (𝐴 ·N 𝐶) ∈ N)) |
| 12 | simpr 110 | . . . . . 6 ⊢ (((𝐴 ∈ N ∧ 𝐴 ∈ N) ∧ (𝐵 ∈ N ∧ 𝐶 ∈ N)) → (𝐵 ∈ N ∧ 𝐶 ∈ N)) | |
| 13 | 12 | an4s 596 | . . . . 5 ⊢ (((𝐴 ∈ N ∧ 𝐵 ∈ N) ∧ (𝐴 ∈ N ∧ 𝐶 ∈ N)) → (𝐵 ∈ N ∧ 𝐶 ∈ N)) |
| 14 | 11, 13 | jca 306 | . . . 4 ⊢ (((𝐴 ∈ N ∧ 𝐵 ∈ N) ∧ (𝐴 ∈ N ∧ 𝐶 ∈ N)) → (((𝐴 ·N 𝐵) ∈ N ∧ (𝐴 ·N 𝐶) ∈ N) ∧ (𝐵 ∈ N ∧ 𝐶 ∈ N))) |
| 15 | 14 | 3impdi 1334 | . . 3 ⊢ ((𝐴 ∈ N ∧ 𝐵 ∈ N ∧ 𝐶 ∈ N) → (((𝐴 ·N 𝐵) ∈ N ∧ (𝐴 ·N 𝐶) ∈ N) ∧ (𝐵 ∈ N ∧ 𝐶 ∈ N))) |
| 16 | enqbreq 7729 | . . 3 ⊢ ((((𝐴 ·N 𝐵) ∈ N ∧ (𝐴 ·N 𝐶) ∈ N) ∧ (𝐵 ∈ N ∧ 𝐶 ∈ N)) → (〈(𝐴 ·N 𝐵), (𝐴 ·N 𝐶)〉 ~Q 〈𝐵, 𝐶〉 ↔ ((𝐴 ·N 𝐵) ·N 𝐶) = ((𝐴 ·N 𝐶) ·N 𝐵))) | |
| 17 | 15, 16 | syl 14 | . 2 ⊢ ((𝐴 ∈ N ∧ 𝐵 ∈ N ∧ 𝐶 ∈ N) → (〈(𝐴 ·N 𝐵), (𝐴 ·N 𝐶)〉 ~Q 〈𝐵, 𝐶〉 ↔ ((𝐴 ·N 𝐵) ·N 𝐶) = ((𝐴 ·N 𝐶) ·N 𝐵))) |
| 18 | 8, 17 | mpbird 167 | 1 ⊢ ((𝐴 ∈ N ∧ 𝐵 ∈ N ∧ 𝐶 ∈ N) → 〈(𝐴 ·N 𝐵), (𝐴 ·N 𝐶)〉 ~Q 〈𝐵, 𝐶〉) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 104 ↔ wb 105 ∧ w3a 1009 = wceq 1402 ∈ wcel 2209 〈cop 3712 class class class wbr 4131 (class class class)co 6088 Ncnpi 7645 ·N cmi 7647 ~Q ceq 7652 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 623 ax-in2 624 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-14 2212 ax-ext 2220 ax-coll 4248 ax-sep 4251 ax-nul 4261 ax-pow 4313 ax-pr 4348 ax-un 4580 ax-setind 4686 ax-iinf 4737 |
| This proof depends on definitions: df-bi 117 df-dc 847 df-3an 1011 df-tru 1405 df-fal 1408 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-ral 2533 df-rex 2534 df-reu 2535 df-rab 2537 df-v 2823 df-sbc 3052 df-csb 3148 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-nul 3521 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-int 3971 df-iun 4014 df-br 4132 df-opab 4194 df-mpt 4195 df-tr 4232 df-id 4440 df-iord 4513 df-on 4515 df-suc 4518 df-iom 4740 df-xp 4782 df-rel 4783 df-cnv 4784 df-co 4785 df-dm 4786 df-rn 4787 df-res 4788 df-ima 4789 df-iota 5340 df-fun 5382 df-fn 5383 df-f 5384 df-f1 5385 df-fo 5386 df-f1o 5387 df-fv 5388 df-ov 6091 df-oprab 6092 df-mpo 6093 df-1st 6378 df-2nd 6379 df-recs 6580 df-irdg 6645 df-oadd 6695 df-omul 6696 df-ni 7677 df-mi 7679 df-enq 7720 |
| This theorem is used by: mulcanenqec 7759 |
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