Theorem uniioombllem3a 23904

Description: Lemma for uniioombl 23909. (Contributed by Mario Carneiro, 8-May-2015.)

Hypotheses

Ref	Expression
uniioombl.1	⊢ (𝜑 → 𝐹:ℕ⟶( ≤ ∩ (ℝ × ℝ)))
uniioombl.2	⊢ (𝜑 → Disj 𝑥 ∈ ℕ ((,)‘(𝐹‘𝑥)))
uniioombl.3	⊢ 𝑆 = seq1( + , ((abs ∘ − ) ∘ 𝐹))
uniioombl.a	⊢ 𝐴 = ∪ ran ((,) ∘ 𝐹)
uniioombl.e	⊢ (𝜑 → (vol*‘𝐸) ∈ ℝ)
uniioombl.c	⊢ (𝜑 → 𝐶 ∈ ℝ+)
uniioombl.g	⊢ (𝜑 → 𝐺:ℕ⟶( ≤ ∩ (ℝ × ℝ)))
uniioombl.s	⊢ (𝜑 → 𝐸 ⊆ ∪ ran ((,) ∘ 𝐺))
uniioombl.t	⊢ 𝑇 = seq1( + , ((abs ∘ − ) ∘ 𝐺))
uniioombl.v	⊢ (𝜑 → sup(ran 𝑇, ℝ*, < ) ≤ ((vol*‘𝐸) + 𝐶))
uniioombl.m	⊢ (𝜑 → 𝑀 ∈ ℕ)
uniioombl.m2	⊢ (𝜑 → (abs‘((𝑇‘𝑀) − sup(ran 𝑇, ℝ*, < ))) < 𝐶)
uniioombl.k	⊢ 𝐾 = ∪ (((,) ∘ 𝐺) “ (1...𝑀))

Assertion

Ref	Expression
uniioombllem3a	⊢ (𝜑 → (𝐾 = ∪ 𝑗 ∈ (1...𝑀)((,)‘(𝐺‘𝑗)) ∧ (vol*‘𝐾) ∈ ℝ))

Distinct variable groups:   𝑥,𝑗,𝐹   𝑗,𝐺,𝑥   𝑗,𝐾,𝑥   𝐴,𝑗,𝑥   𝐶,𝑗,𝑥   𝑗,𝑀,𝑥   𝜑,𝑗,𝑥   𝑇,𝑗,𝑥

Allowed substitution hints:   𝑆(𝑥,𝑗)   𝐸(𝑥,𝑗)

Proof of Theorem uniioombllem3a

Step	Hyp	Ref	Expression
1		uniioombl.k	. . 3 ⊢ 𝐾 = ∪ (((,) ∘ 𝐺) “ (1...𝑀))
2		ioof 12650	. . . . . 6 ⊢ (,):(ℝ* × ℝ*)⟶𝒫 ℝ
3		uniioombl.g	. . . . . . 7 ⊢ (𝜑 → 𝐺:ℕ⟶( ≤ ∩ (ℝ × ℝ)))
4		inss2 4088	. . . . . . . 8 ⊢ ( ≤ ∩ (ℝ × ℝ)) ⊆ (ℝ × ℝ)
5		rexpssxrxp 10484	. . . . . . . 8 ⊢ (ℝ × ℝ) ⊆ (ℝ* × ℝ*)
6	4, 5	sstri 3862	. . . . . . 7 ⊢ ( ≤ ∩ (ℝ × ℝ)) ⊆ (ℝ* × ℝ*)
7		fss 6355	. . . . . . 7 ⊢ ((𝐺:ℕ⟶( ≤ ∩ (ℝ × ℝ)) ∧ ( ≤ ∩ (ℝ × ℝ)) ⊆ (ℝ* × ℝ*)) → 𝐺:ℕ⟶(ℝ* × ℝ*))
8	3, 6, 7	sylancl 578	. . . . . 6 ⊢ (𝜑 → 𝐺:ℕ⟶(ℝ* × ℝ*))
9		fco 6359	. . . . . 6 ⊢ (((,):(ℝ* × ℝ*)⟶𝒫 ℝ ∧ 𝐺:ℕ⟶(ℝ* × ℝ*)) → ((,) ∘ 𝐺):ℕ⟶𝒫 ℝ)
10	2, 8, 9	sylancr 579	. . . . 5 ⊢ (𝜑 → ((,) ∘ 𝐺):ℕ⟶𝒫 ℝ)
11		ffun 6345	. . . . 5 ⊢ (((,) ∘ 𝐺):ℕ⟶𝒫 ℝ → Fun ((,) ∘ 𝐺))
12		funiunfv 6831	. . . . 5 ⊢ (Fun ((,) ∘ 𝐺) → ∪ 𝑗 ∈ (1...𝑀)(((,) ∘ 𝐺)‘𝑗) = ∪ (((,) ∘ 𝐺) “ (1...𝑀)))
13	10, 11, 12	3syl 18	. . . 4 ⊢ (𝜑 → ∪ 𝑗 ∈ (1...𝑀)(((,) ∘ 𝐺)‘𝑗) = ∪ (((,) ∘ 𝐺) “ (1...𝑀)))
14		elfznn 12751	. . . . . 6 ⊢ (𝑗 ∈ (1...𝑀) → 𝑗 ∈ ℕ)
15		fvco3 6587	. . . . . 6 ⊢ ((𝐺:ℕ⟶( ≤ ∩ (ℝ × ℝ)) ∧ 𝑗 ∈ ℕ) → (((,) ∘ 𝐺)‘𝑗) = ((,)‘(𝐺‘𝑗)))
16	3, 14, 15	syl2an 587	. . . . 5 ⊢ ((𝜑 ∧ 𝑗 ∈ (1...𝑀)) → (((,) ∘ 𝐺)‘𝑗) = ((,)‘(𝐺‘𝑗)))
17	16	iuneq2dv 4812	. . . 4 ⊢ (𝜑 → ∪ 𝑗 ∈ (1...𝑀)(((,) ∘ 𝐺)‘𝑗) = ∪ 𝑗 ∈ (1...𝑀)((,)‘(𝐺‘𝑗)))
18	13, 17	eqtr3d 2811	. . 3 ⊢ (𝜑 → ∪ (((,) ∘ 𝐺) “ (1...𝑀)) = ∪ 𝑗 ∈ (1...𝑀)((,)‘(𝐺‘𝑗)))
19	1, 18	syl5eq 2821	. 2 ⊢ (𝜑 → 𝐾 = ∪ 𝑗 ∈ (1...𝑀)((,)‘(𝐺‘𝑗)))
20		ffvelrn 6673	. . . . . . . . . . . 12 ⊢ ((𝐺:ℕ⟶( ≤ ∩ (ℝ × ℝ)) ∧ 𝑗 ∈ ℕ) → (𝐺‘𝑗) ∈ ( ≤ ∩ (ℝ × ℝ)))
21	3, 14, 20	syl2an 587	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑗 ∈ (1...𝑀)) → (𝐺‘𝑗) ∈ ( ≤ ∩ (ℝ × ℝ)))
22	21	elin2d 4059	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑗 ∈ (1...𝑀)) → (𝐺‘𝑗) ∈ (ℝ × ℝ))
23		1st2nd2 7539	. . . . . . . . . 10 ⊢ ((𝐺‘𝑗) ∈ (ℝ × ℝ) → (𝐺‘𝑗) = ⟨(1st ‘(𝐺‘𝑗)), (2nd ‘(𝐺‘𝑗))⟩)
24	22, 23	syl 17	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑗 ∈ (1...𝑀)) → (𝐺‘𝑗) = ⟨(1st ‘(𝐺‘𝑗)), (2nd ‘(𝐺‘𝑗))⟩)
25	24	fveq2d 6501	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑗 ∈ (1...𝑀)) → ((,)‘(𝐺‘𝑗)) = ((,)‘⟨(1st ‘(𝐺‘𝑗)), (2nd ‘(𝐺‘𝑗))⟩))
26		df-ov 6978	. . . . . . . 8 ⊢ ((1st ‘(𝐺‘𝑗))(,)(2nd ‘(𝐺‘𝑗))) = ((,)‘⟨(1st ‘(𝐺‘𝑗)), (2nd ‘(𝐺‘𝑗))⟩)
27	25, 26	syl6eqr 2827	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑗 ∈ (1...𝑀)) → ((,)‘(𝐺‘𝑗)) = ((1st ‘(𝐺‘𝑗))(,)(2nd ‘(𝐺‘𝑗))))
28		ioossre 12613	. . . . . . 7 ⊢ ((1st ‘(𝐺‘𝑗))(,)(2nd ‘(𝐺‘𝑗))) ⊆ ℝ
29	27, 28	syl6eqss 3906	. . . . . 6 ⊢ ((𝜑 ∧ 𝑗 ∈ (1...𝑀)) → ((,)‘(𝐺‘𝑗)) ⊆ ℝ)
30	29	ralrimiva 3127	. . . . 5 ⊢ (𝜑 → ∀𝑗 ∈ (1...𝑀)((,)‘(𝐺‘𝑗)) ⊆ ℝ)
31		iunss 4832	. . . . 5 ⊢ (∪ 𝑗 ∈ (1...𝑀)((,)‘(𝐺‘𝑗)) ⊆ ℝ ↔ ∀𝑗 ∈ (1...𝑀)((,)‘(𝐺‘𝑗)) ⊆ ℝ)
32	30, 31	sylibr 226	. . . 4 ⊢ (𝜑 → ∪ 𝑗 ∈ (1...𝑀)((,)‘(𝐺‘𝑗)) ⊆ ℝ)
33	19, 32	eqsstrd 3890	. . 3 ⊢ (𝜑 → 𝐾 ⊆ ℝ)
34		fzfid 13155	. . . 4 ⊢ (𝜑 → (1...𝑀) ∈ Fin)
35	27	fveq2d 6501	. . . . . 6 ⊢ ((𝜑 ∧ 𝑗 ∈ (1...𝑀)) → (vol*‘((,)‘(𝐺‘𝑗))) = (vol*‘((1st ‘(𝐺‘𝑗))(,)(2nd ‘(𝐺‘𝑗)))))
36		ovolfcl 23786	. . . . . . . 8 ⊢ ((𝐺:ℕ⟶( ≤ ∩ (ℝ × ℝ)) ∧ 𝑗 ∈ ℕ) → ((1st ‘(𝐺‘𝑗)) ∈ ℝ ∧ (2nd ‘(𝐺‘𝑗)) ∈ ℝ ∧ (1st ‘(𝐺‘𝑗)) ≤ (2nd ‘(𝐺‘𝑗))))
37	3, 14, 36	syl2an 587	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑗 ∈ (1...𝑀)) → ((1st ‘(𝐺‘𝑗)) ∈ ℝ ∧ (2nd ‘(𝐺‘𝑗)) ∈ ℝ ∧ (1st ‘(𝐺‘𝑗)) ≤ (2nd ‘(𝐺‘𝑗))))
38		ovolioo 23888	. . . . . . 7 ⊢ (((1st ‘(𝐺‘𝑗)) ∈ ℝ ∧ (2nd ‘(𝐺‘𝑗)) ∈ ℝ ∧ (1st ‘(𝐺‘𝑗)) ≤ (2nd ‘(𝐺‘𝑗))) → (vol*‘((1st ‘(𝐺‘𝑗))(,)(2nd ‘(𝐺‘𝑗)))) = ((2nd ‘(𝐺‘𝑗)) − (1st ‘(𝐺‘𝑗))))
39	37, 38	syl 17	. . . . . 6 ⊢ ((𝜑 ∧ 𝑗 ∈ (1...𝑀)) → (vol*‘((1st ‘(𝐺‘𝑗))(,)(2nd ‘(𝐺‘𝑗)))) = ((2nd ‘(𝐺‘𝑗)) − (1st ‘(𝐺‘𝑗))))
40	35, 39	eqtrd 2809	. . . . 5 ⊢ ((𝜑 ∧ 𝑗 ∈ (1...𝑀)) → (vol*‘((,)‘(𝐺‘𝑗))) = ((2nd ‘(𝐺‘𝑗)) − (1st ‘(𝐺‘𝑗))))
41	37	simp2d 1124	. . . . . 6 ⊢ ((𝜑 ∧ 𝑗 ∈ (1...𝑀)) → (2nd ‘(𝐺‘𝑗)) ∈ ℝ)
42	37	simp1d 1123	. . . . . 6 ⊢ ((𝜑 ∧ 𝑗 ∈ (1...𝑀)) → (1st ‘(𝐺‘𝑗)) ∈ ℝ)
43	41, 42	resubcld 10868	. . . . 5 ⊢ ((𝜑 ∧ 𝑗 ∈ (1...𝑀)) → ((2nd ‘(𝐺‘𝑗)) − (1st ‘(𝐺‘𝑗))) ∈ ℝ)
44	40, 43	eqeltrd 2861	. . . 4 ⊢ ((𝜑 ∧ 𝑗 ∈ (1...𝑀)) → (vol*‘((,)‘(𝐺‘𝑗))) ∈ ℝ)
45	34, 44	fsumrecl 14950	. . 3 ⊢ (𝜑 → Σ𝑗 ∈ (1...𝑀)(vol*‘((,)‘(𝐺‘𝑗))) ∈ ℝ)
46	19	fveq2d 6501	. . . 4 ⊢ (𝜑 → (vol*‘𝐾) = (vol*‘∪ 𝑗 ∈ (1...𝑀)((,)‘(𝐺‘𝑗))))
47	29, 44	jca 504	. . . . . 6 ⊢ ((𝜑 ∧ 𝑗 ∈ (1...𝑀)) → (((,)‘(𝐺‘𝑗)) ⊆ ℝ ∧ (vol*‘((,)‘(𝐺‘𝑗))) ∈ ℝ))
48	47	ralrimiva 3127	. . . . 5 ⊢ (𝜑 → ∀𝑗 ∈ (1...𝑀)(((,)‘(𝐺‘𝑗)) ⊆ ℝ ∧ (vol*‘((,)‘(𝐺‘𝑗))) ∈ ℝ))
49		ovolfiniun 23821	. . . . 5 ⊢ (((1...𝑀) ∈ Fin ∧ ∀𝑗 ∈ (1...𝑀)(((,)‘(𝐺‘𝑗)) ⊆ ℝ ∧ (vol*‘((,)‘(𝐺‘𝑗))) ∈ ℝ)) → (vol*‘∪ 𝑗 ∈ (1...𝑀)((,)‘(𝐺‘𝑗))) ≤ Σ𝑗 ∈ (1...𝑀)(vol*‘((,)‘(𝐺‘𝑗))))
50	34, 48, 49	syl2anc 576	. . . 4 ⊢ (𝜑 → (vol*‘∪ 𝑗 ∈ (1...𝑀)((,)‘(𝐺‘𝑗))) ≤ Σ𝑗 ∈ (1...𝑀)(vol*‘((,)‘(𝐺‘𝑗))))
51	46, 50	eqbrtrd 4948	. . 3 ⊢ (𝜑 → (vol*‘𝐾) ≤ Σ𝑗 ∈ (1...𝑀)(vol*‘((,)‘(𝐺‘𝑗))))
52		ovollecl 23803	. . 3 ⊢ ((𝐾 ⊆ ℝ ∧ Σ𝑗 ∈ (1...𝑀)(vol*‘((,)‘(𝐺‘𝑗))) ∈ ℝ ∧ (vol*‘𝐾) ≤ Σ𝑗 ∈ (1...𝑀)(vol*‘((,)‘(𝐺‘𝑗)))) → (vol*‘𝐾) ∈ ℝ)
53	33, 45, 51, 52	syl3anc 1352	. 2 ⊢ (𝜑 → (vol*‘𝐾) ∈ ℝ)
54	19, 53	jca 504	1 ⊢ (𝜑 → (𝐾 = ∪ 𝑗 ∈ (1...𝑀)((,)‘(𝐺‘𝑗)) ∧ (vol*‘𝐾) ∈ ℝ))

Syntax hints:   → wi 4   ∧ wa 387   ∧ w3a 1069   = wceq 1508   ∈ wcel 2051  ∀wral 3083   ∩ cin 3823   ⊆ wss 3824  𝒫 cpw 4417  ⟨cop 4442  ∪ cuni 4709  ∪ ciun 4789  Disj wdisj 4894   class class class wbr 4926   × cxp 5402  ran crn 5405   “ cima 5407   ∘ ccom 5408  Fun wfun 6180  ⟶wf 6182  ‘cfv 6186  (class class class)co 6975  1^st c1st 7498  2^nd c2nd 7499  Fincfn 8305  supcsup 8698  ℝcr 10333  1c1 10335   + caddc 10337  ℝ^*cxr 10472   < clt 10473   ≤ cle 10474   − cmin 10669  ℕcn 11438  ℝ⁺crp 12203  (,)cioo 12553  ...cfz 12707  seqcseq 13183  abscabs 14453  Σcsu 14902  vol*covol 23782

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1759  ax-4 1773  ax-5 1870  ax-6 1929  ax-7 1966  ax-8 2053  ax-9 2060  ax-10 2080  ax-11 2094  ax-12 2107  ax-13 2302  ax-ext 2745  ax-rep 5046  ax-sep 5057  ax-nul 5064  ax-pow 5116  ax-pr 5183  ax-un 7278  ax-inf2 8897  ax-cnex 10390  ax-resscn 10391  ax-1cn 10392  ax-icn 10393  ax-addcl 10394  ax-addrcl 10395  ax-mulcl 10396  ax-mulrcl 10397  ax-mulcom 10398  ax-addass 10399  ax-mulass 10400  ax-distr 10401  ax-i2m1 10402  ax-1ne0 10403  ax-1rid 10404  ax-rnegex 10405  ax-rrecex 10406  ax-cnre 10407  ax-pre-lttri 10408  ax-pre-lttrn 10409  ax-pre-ltadd 10410  ax-pre-mulgt0 10411  ax-pre-sup 10412

This theorem depends on definitions:  df-bi 199  df-an 388  df-or 835  df-3or 1070  df-3an 1071  df-tru 1511  df-fal 1521  df-ex 1744  df-nf 1748  df-sb 2017  df-mo 2548  df-eu 2585  df-clab 2754  df-cleq 2766  df-clel 2841  df-nfc 2913  df-ne 2963  df-nel 3069  df-ral 3088  df-rex 3089  df-reu 3090  df-rmo 3091  df-rab 3092  df-v 3412  df-sbc 3677  df-csb 3782  df-dif 3827  df-un 3829  df-in 3831  df-ss 3838  df-pss 3840  df-nul 4174  df-if 4346  df-pw 4419  df-sn 4437  df-pr 4439  df-tp 4441  df-op 4443  df-uni 4710  df-int 4747  df-iun 4791  df-br 4927  df-opab 4989  df-mpt 5006  df-tr 5028  df-id 5309  df-eprel 5314  df-po 5323  df-so 5324  df-fr 5363  df-se 5364  df-we 5365  df-xp 5410  df-rel 5411  df-cnv 5412  df-co 5413  df-dm 5414  df-rn 5415  df-res 5416  df-ima 5417  df-pred 5984  df-ord 6030  df-on 6031  df-lim 6032  df-suc 6033  df-iota 6150  df-fun 6188  df-fn 6189  df-f 6190  df-f1 6191  df-fo 6192  df-f1o 6193  df-fv 6194  df-isom 6195  df-riota 6936  df-ov 6978  df-oprab 6979  df-mpo 6980  df-of 7226  df-om 7396  df-1st 7500  df-2nd 7501  df-wrecs 7749  df-recs 7811  df-rdg 7849  df-1o 7904  df-2o 7905  df-oadd 7908  df-er 8088  df-map 8207  df-pm 8208  df-en 8306  df-dom 8307  df-sdom 8308  df-fin 8309  df-fi 8669  df-sup 8700  df-inf 8701  df-oi 8768  df-dju 9123  df-card 9161  df-pnf 10475  df-mnf 10476  df-xr 10477  df-ltxr 10478  df-le 10479  df-sub 10671  df-neg 10672  df-div 11098  df-nn 11439  df-2 11502  df-3 11503  df-n0 11707  df-z 11793  df-uz 12058  df-q 12162  df-rp 12204  df-xneg 12323  df-xadd 12324  df-xmul 12325  df-ioo 12557  df-ico 12559  df-icc 12560  df-fz 12708  df-fzo 12849  df-fl 12976  df-seq 13184  df-exp 13244  df-hash 13505  df-cj 14318  df-re 14319  df-im 14320  df-sqrt 14454  df-abs 14455  df-clim 14705  df-rlim 14706  df-sum 14903  df-rest 16551  df-topgen 16572  df-psmet 20255  df-xmet 20256  df-met 20257  df-bl 20258  df-mopn 20259  df-top 21222  df-topon 21239  df-bases 21274  df-cmp 21715  df-ovol 23784  df-vol 23785

This theorem is referenced by:  uniioombllem3  23905