Theorem quoremnn0ALT 12518

Description: Alternate proof of quoremnn0 12517 not using quoremz 12516. TODO - Keep either quoremnn0ALT 12518 (if we don't keep quoremz 12516) or quoremnn0 12517. (Contributed by NM, 14-Aug-2008.) (Proof modification is discouraged.) (New usage is discouraged.)

Hypotheses

Ref	Expression
quorem.1	⊢ 𝑄 = (⌊‘(𝐴 / 𝐵))
quorem.2	⊢ 𝑅 = (𝐴 − (𝐵 · 𝑄))

Assertion

Ref	Expression
quoremnn0ALT	⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → ((𝑄 ∈ ℕ0 ∧ 𝑅 ∈ ℕ0) ∧ (𝑅 < 𝐵 ∧ 𝐴 = ((𝐵 · 𝑄) + 𝑅))))

Proof of Theorem quoremnn0ALT

Step	Hyp	Ref	Expression
1		quorem.1	. . 3 ⊢ 𝑄 = (⌊‘(𝐴 / 𝐵))
2		fldivnn0 12485	. . 3 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → (⌊‘(𝐴 / 𝐵)) ∈ ℕ0)
3	1, 2	syl5eqel 2692	. 2 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → 𝑄 ∈ ℕ0)
4		quorem.2	. . 3 ⊢ 𝑅 = (𝐴 − (𝐵 · 𝑄))
5		nnnn0 11176	. . . . . 6 ⊢ (𝐵 ∈ ℕ → 𝐵 ∈ ℕ0)
6	5	adantl 481	. . . . 5 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → 𝐵 ∈ ℕ0)
7	6, 3	nn0mulcld 11233	. . . 4 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → (𝐵 · 𝑄) ∈ ℕ0)
8		simpl 472	. . . 4 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → 𝐴 ∈ ℕ0)
9	3	nn0cnd 11230	. . . . . . 7 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → 𝑄 ∈ ℂ)
10		nncn 10905	. . . . . . . 8 ⊢ (𝐵 ∈ ℕ → 𝐵 ∈ ℂ)
11	10	adantl 481	. . . . . . 7 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → 𝐵 ∈ ℂ)
12		nnne0 10930	. . . . . . . 8 ⊢ (𝐵 ∈ ℕ → 𝐵 ≠ 0)
13	12	adantl 481	. . . . . . 7 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → 𝐵 ≠ 0)
14	9, 11, 13	divcan3d 10685	. . . . . 6 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → ((𝐵 · 𝑄) / 𝐵) = 𝑄)
15		nn0nndivcl 11239	. . . . . . . 8 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → (𝐴 / 𝐵) ∈ ℝ)
16		flle 12462	. . . . . . . 8 ⊢ ((𝐴 / 𝐵) ∈ ℝ → (⌊‘(𝐴 / 𝐵)) ≤ (𝐴 / 𝐵))
17	15, 16	syl 17	. . . . . . 7 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → (⌊‘(𝐴 / 𝐵)) ≤ (𝐴 / 𝐵))
18	1, 17	syl5eqbr 4618	. . . . . 6 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → 𝑄 ≤ (𝐴 / 𝐵))
19	14, 18	eqbrtrd 4605	. . . . 5 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → ((𝐵 · 𝑄) / 𝐵) ≤ (𝐴 / 𝐵))
20	7	nn0red 11229	. . . . . 6 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → (𝐵 · 𝑄) ∈ ℝ)
21		nn0re 11178	. . . . . . 7 ⊢ (𝐴 ∈ ℕ0 → 𝐴 ∈ ℝ)
22	21	adantr 480	. . . . . 6 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → 𝐴 ∈ ℝ)
23		nnre 10904	. . . . . . 7 ⊢ (𝐵 ∈ ℕ → 𝐵 ∈ ℝ)
24	23	adantl 481	. . . . . 6 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → 𝐵 ∈ ℝ)
25		nngt0 10926	. . . . . . 7 ⊢ (𝐵 ∈ ℕ → 0 < 𝐵)
26	25	adantl 481	. . . . . 6 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → 0 < 𝐵)
27		lediv1 10767	. . . . . 6 ⊢ (((𝐵 · 𝑄) ∈ ℝ ∧ 𝐴 ∈ ℝ ∧ (𝐵 ∈ ℝ ∧ 0 < 𝐵)) → ((𝐵 · 𝑄) ≤ 𝐴 ↔ ((𝐵 · 𝑄) / 𝐵) ≤ (𝐴 / 𝐵)))
28	20, 22, 24, 26, 27	syl112anc 1322	. . . . 5 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → ((𝐵 · 𝑄) ≤ 𝐴 ↔ ((𝐵 · 𝑄) / 𝐵) ≤ (𝐴 / 𝐵)))
29	19, 28	mpbird 246	. . . 4 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → (𝐵 · 𝑄) ≤ 𝐴)
30		nn0sub2 11315	. . . 4 ⊢ (((𝐵 · 𝑄) ∈ ℕ0 ∧ 𝐴 ∈ ℕ0 ∧ (𝐵 · 𝑄) ≤ 𝐴) → (𝐴 − (𝐵 · 𝑄)) ∈ ℕ0)
31	7, 8, 29, 30	syl3anc 1318	. . 3 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → (𝐴 − (𝐵 · 𝑄)) ∈ ℕ0)
32	4, 31	syl5eqel 2692	. 2 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → 𝑅 ∈ ℕ0)
33	1	oveq2i 6560	. . . . . 6 ⊢ ((𝐴 / 𝐵) − 𝑄) = ((𝐴 / 𝐵) − (⌊‘(𝐴 / 𝐵)))
34		fraclt1 12465	. . . . . . 7 ⊢ ((𝐴 / 𝐵) ∈ ℝ → ((𝐴 / 𝐵) − (⌊‘(𝐴 / 𝐵))) < 1)
35	15, 34	syl 17	. . . . . 6 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → ((𝐴 / 𝐵) − (⌊‘(𝐴 / 𝐵))) < 1)
36	33, 35	syl5eqbr 4618	. . . . 5 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → ((𝐴 / 𝐵) − 𝑄) < 1)
37	4	oveq1i 6559	. . . . . 6 ⊢ (𝑅 / 𝐵) = ((𝐴 − (𝐵 · 𝑄)) / 𝐵)
38		nn0cn 11179	. . . . . . . . 9 ⊢ (𝐴 ∈ ℕ0 → 𝐴 ∈ ℂ)
39	38	adantr 480	. . . . . . . 8 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → 𝐴 ∈ ℂ)
40	7	nn0cnd 11230	. . . . . . . 8 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → (𝐵 · 𝑄) ∈ ℂ)
41	10, 12	jca 553	. . . . . . . . 9 ⊢ (𝐵 ∈ ℕ → (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0))
42	41	adantl 481	. . . . . . . 8 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0))
43		divsubdir 10600	. . . . . . . 8 ⊢ ((𝐴 ∈ ℂ ∧ (𝐵 · 𝑄) ∈ ℂ ∧ (𝐵 ∈ ℂ ∧ 𝐵 ≠ 0)) → ((𝐴 − (𝐵 · 𝑄)) / 𝐵) = ((𝐴 / 𝐵) − ((𝐵 · 𝑄) / 𝐵)))
44	39, 40, 42, 43	syl3anc 1318	. . . . . . 7 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → ((𝐴 − (𝐵 · 𝑄)) / 𝐵) = ((𝐴 / 𝐵) − ((𝐵 · 𝑄) / 𝐵)))
45	14	oveq2d 6565	. . . . . . 7 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → ((𝐴 / 𝐵) − ((𝐵 · 𝑄) / 𝐵)) = ((𝐴 / 𝐵) − 𝑄))
46	44, 45	eqtrd 2644	. . . . . 6 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → ((𝐴 − (𝐵 · 𝑄)) / 𝐵) = ((𝐴 / 𝐵) − 𝑄))
47	37, 46	syl5eq 2656	. . . . 5 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → (𝑅 / 𝐵) = ((𝐴 / 𝐵) − 𝑄))
48	10, 12	dividd 10678	. . . . . 6 ⊢ (𝐵 ∈ ℕ → (𝐵 / 𝐵) = 1)
49	48	adantl 481	. . . . 5 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → (𝐵 / 𝐵) = 1)
50	36, 47, 49	3brtr4d 4615	. . . 4 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → (𝑅 / 𝐵) < (𝐵 / 𝐵))
51	32	nn0red 11229	. . . . 5 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → 𝑅 ∈ ℝ)
52		ltdiv1 10766	. . . . 5 ⊢ ((𝑅 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ (𝐵 ∈ ℝ ∧ 0 < 𝐵)) → (𝑅 < 𝐵 ↔ (𝑅 / 𝐵) < (𝐵 / 𝐵)))
53	51, 24, 24, 26, 52	syl112anc 1322	. . . 4 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → (𝑅 < 𝐵 ↔ (𝑅 / 𝐵) < (𝐵 / 𝐵)))
54	50, 53	mpbird 246	. . 3 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → 𝑅 < 𝐵)
55	4	oveq2i 6560	. . . 4 ⊢ ((𝐵 · 𝑄) + 𝑅) = ((𝐵 · 𝑄) + (𝐴 − (𝐵 · 𝑄)))
56	40, 39	pncan3d 10274	. . . 4 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → ((𝐵 · 𝑄) + (𝐴 − (𝐵 · 𝑄))) = 𝐴)
57	55, 56	syl5req 2657	. . 3 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → 𝐴 = ((𝐵 · 𝑄) + 𝑅))
58	54, 57	jca 553	. 2 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → (𝑅 < 𝐵 ∧ 𝐴 = ((𝐵 · 𝑄) + 𝑅)))
59	3, 32, 58	jca31 555	1 ⊢ ((𝐴 ∈ ℕ0 ∧ 𝐵 ∈ ℕ) → ((𝑄 ∈ ℕ0 ∧ 𝑅 ∈ ℕ0) ∧ (𝑅 < 𝐵 ∧ 𝐴 = ((𝐵 · 𝑄) + 𝑅))))

Syntax hints:   → wi 4   ↔ wb 195   ∧ wa 383   = wceq 1475   ∈ wcel 1977   ≠ wne 2780   class class class wbr 4583  ‘cfv 5804  (class class class)co 6549  ℂcc 9813  ℝcr 9814  0cc0 9815  1c1 9816   + caddc 9818   · cmul 9820   < clt 9953   ≤ cle 9954   − cmin 10145   / cdiv 10563  ℕcn 10897  ℕ₀cn0 11169  ⌊cfl 12453

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1713  ax-4 1728  ax-5 1827  ax-6 1875  ax-7 1922  ax-8 1979  ax-9 1986  ax-10 2006  ax-11 2021  ax-12 2034  ax-13 2234  ax-ext 2590  ax-sep 4709  ax-nul 4717  ax-pow 4769  ax-pr 4833  ax-un 6847  ax-cnex 9871  ax-resscn 9872  ax-1cn 9873  ax-icn 9874  ax-addcl 9875  ax-addrcl 9876  ax-mulcl 9877  ax-mulrcl 9878  ax-mulcom 9879  ax-addass 9880  ax-mulass 9881  ax-distr 9882  ax-i2m1 9883  ax-1ne0 9884  ax-1rid 9885  ax-rnegex 9886  ax-rrecex 9887  ax-cnre 9888  ax-pre-lttri 9889  ax-pre-lttrn 9890  ax-pre-ltadd 9891  ax-pre-mulgt0 9892  ax-pre-sup 9893

This theorem depends on definitions:  df-bi 196  df-or 384  df-an 385  df-3or 1032  df-3an 1033  df-tru 1478  df-ex 1696  df-nf 1701  df-sb 1868  df-eu 2462  df-mo 2463  df-clab 2597  df-cleq 2603  df-clel 2606  df-nfc 2740  df-ne 2782  df-nel 2783  df-ral 2901  df-rex 2902  df-reu 2903  df-rmo 2904  df-rab 2905  df-v 3175  df-sbc 3403  df-csb 3500  df-dif 3543  df-un 3545  df-in 3547  df-ss 3554  df-pss 3556  df-nul 3875  df-if 4037  df-pw 4110  df-sn 4126  df-pr 4128  df-tp 4130  df-op 4132  df-uni 4373  df-iun 4457  df-br 4584  df-opab 4644  df-mpt 4645  df-tr 4681  df-eprel 4949  df-id 4953  df-po 4959  df-so 4960  df-fr 4997  df-we 4999  df-xp 5044  df-rel 5045  df-cnv 5046  df-co 5047  df-dm 5048  df-rn 5049  df-res 5050  df-ima 5051  df-pred 5597  df-ord 5643  df-on 5644  df-lim 5645  df-suc 5646  df-iota 5768  df-fun 5806  df-fn 5807  df-f 5808  df-f1 5809  df-fo 5810  df-f1o 5811  df-fv 5812  df-riota 6511  df-ov 6552  df-oprab 6553  df-mpt2 6554  df-om 6958  df-wrecs 7294  df-recs 7355  df-rdg 7393  df-er 7629  df-en 7842  df-dom 7843  df-sdom 7844  df-sup 8231  df-inf 8232  df-pnf 9955  df-mnf 9956  df-xr 9957  df-ltxr 9958  df-le 9959  df-sub 10147  df-neg 10148  df-div 10564  df-nn 10898  df-n0 11170  df-z 11255  df-uz 11564  df-fl 12455

This theorem is referenced by: (None)