Theorem dstfrvunirn 31727

Description: The limit of all preimage maps by the "less than or equal to" relation is the universe. (Contributed by Thierry Arnoux, 12-Feb-2017.)

Hypotheses

Ref	Expression
dstfrv.1	⊢ (𝜑 → 𝑃 ∈ Prob)
dstfrv.2	⊢ (𝜑 → 𝑋 ∈ (rRndVar‘𝑃))

Assertion

Ref	Expression
dstfrvunirn	⊢ (𝜑 → ∪ ran (𝑛 ∈ ℕ ↦ (𝑋∘RV/𝑐 ≤ 𝑛)) = ∪ dom 𝑃)

Distinct variable groups:   𝑃,𝑛   𝑛,𝑋   𝜑,𝑛

Proof of Theorem dstfrvunirn

Dummy variable 𝑥 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		1red 10636	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → 1 ∈ ℝ)
2		dstfrv.1	. . . . . . . . . . . 12 ⊢ (𝜑 → 𝑃 ∈ Prob)
3		dstfrv.2	. . . . . . . . . . . 12 ⊢ (𝜑 → 𝑋 ∈ (rRndVar‘𝑃))
4	2, 3	rrvvf 31697	. . . . . . . . . . 11 ⊢ (𝜑 → 𝑋:∪ dom 𝑃⟶ℝ)
5	4	ffvelrnda 6846	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → (𝑋‘𝑥) ∈ ℝ)
6	1, 5	ifcld 4512	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥)) ∈ ℝ)
7		breq2 5063	. . . . . . . . . 10 ⊢ (1 = if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥)) → (1 ≤ 1 ↔ 1 ≤ if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))))
8		breq2 5063	. . . . . . . . . 10 ⊢ ((𝑋‘𝑥) = if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥)) → (1 ≤ (𝑋‘𝑥) ↔ 1 ≤ if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))))
9		1le1 11262	. . . . . . . . . . 11 ⊢ 1 ≤ 1
10	9	a1i 11	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) ∧ (𝑋‘𝑥) < 1) → 1 ≤ 1)
11	1, 5	lenltd 10780	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → (1 ≤ (𝑋‘𝑥) ↔ ¬ (𝑋‘𝑥) < 1))
12	11	biimpar 480	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) ∧ ¬ (𝑋‘𝑥) < 1) → 1 ≤ (𝑋‘𝑥))
13	7, 8, 10, 12	ifbothda 4504	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → 1 ≤ if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥)))
14		flge1nn 13185	. . . . . . . . 9 ⊢ ((if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥)) ∈ ℝ ∧ 1 ≤ if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))) → (⌊‘if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))) ∈ ℕ)
15	6, 13, 14	syl2anc 586	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → (⌊‘if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))) ∈ ℕ)
16	15	peano2nnd 11649	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → ((⌊‘if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))) + 1) ∈ ℕ)
17	2	adantr 483	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → 𝑃 ∈ Prob)
18	3	adantr 483	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → 𝑋 ∈ (rRndVar‘𝑃))
19	16	nnred 11647	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → ((⌊‘if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))) + 1) ∈ ℝ)
20		simpr 487	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → 𝑥 ∈ ∪ dom 𝑃)
21		breq2 5063	. . . . . . . . . 10 ⊢ (1 = if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥)) → ((𝑋‘𝑥) ≤ 1 ↔ (𝑋‘𝑥) ≤ if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))))
22		breq2 5063	. . . . . . . . . 10 ⊢ ((𝑋‘𝑥) = if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥)) → ((𝑋‘𝑥) ≤ (𝑋‘𝑥) ↔ (𝑋‘𝑥) ≤ if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))))
23	5	adantr 483	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) ∧ (𝑋‘𝑥) < 1) → (𝑋‘𝑥) ∈ ℝ)
24		1red 10636	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) ∧ (𝑋‘𝑥) < 1) → 1 ∈ ℝ)
25		simpr 487	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) ∧ (𝑋‘𝑥) < 1) → (𝑋‘𝑥) < 1)
26	23, 24, 25	ltled 10782	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) ∧ (𝑋‘𝑥) < 1) → (𝑋‘𝑥) ≤ 1)
27	5	leidd 11200	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → (𝑋‘𝑥) ≤ (𝑋‘𝑥))
28	27	adantr 483	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) ∧ ¬ (𝑋‘𝑥) < 1) → (𝑋‘𝑥) ≤ (𝑋‘𝑥))
29	21, 22, 26, 28	ifbothda 4504	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → (𝑋‘𝑥) ≤ if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥)))
30		fllep1 13165	. . . . . . . . . 10 ⊢ (if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥)) ∈ ℝ → if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥)) ≤ ((⌊‘if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))) + 1))
31	6, 30	syl 17	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥)) ≤ ((⌊‘if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))) + 1))
32	5, 6, 19, 29, 31	letrd 10791	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → (𝑋‘𝑥) ≤ ((⌊‘if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))) + 1))
33	17, 18, 19, 20, 32	dstfrvel 31726	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → 𝑥 ∈ (𝑋∘RV/𝑐 ≤ ((⌊‘if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))) + 1)))
34		oveq2 7158	. . . . . . . . 9 ⊢ (𝑛 = ((⌊‘if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))) + 1) → (𝑋∘RV/𝑐 ≤ 𝑛) = (𝑋∘RV/𝑐 ≤ ((⌊‘if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))) + 1)))
35	34	eleq2d 2898	. . . . . . . 8 ⊢ (𝑛 = ((⌊‘if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))) + 1) → (𝑥 ∈ (𝑋∘RV/𝑐 ≤ 𝑛) ↔ 𝑥 ∈ (𝑋∘RV/𝑐 ≤ ((⌊‘if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))) + 1))))
36	35	rspcev 3623	. . . . . . 7 ⊢ ((((⌊‘if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))) + 1) ∈ ℕ ∧ 𝑥 ∈ (𝑋∘RV/𝑐 ≤ ((⌊‘if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))) + 1))) → ∃𝑛 ∈ ℕ 𝑥 ∈ (𝑋∘RV/𝑐 ≤ 𝑛))
37	16, 33, 36	syl2anc 586	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → ∃𝑛 ∈ ℕ 𝑥 ∈ (𝑋∘RV/𝑐 ≤ 𝑛))
38	37	ex 415	. . . . 5 ⊢ (𝜑 → (𝑥 ∈ ∪ dom 𝑃 → ∃𝑛 ∈ ℕ 𝑥 ∈ (𝑋∘RV/𝑐 ≤ 𝑛)))
39	2	adantr 483	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → 𝑃 ∈ Prob)
40	3	adantr 483	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → 𝑋 ∈ (rRndVar‘𝑃))
41		simpr 487	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → 𝑛 ∈ ℕ)
42	41	nnred 11647	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → 𝑛 ∈ ℝ)
43	39, 40, 42	orvclteel 31725	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → (𝑋∘RV/𝑐 ≤ 𝑛) ∈ dom 𝑃)
44		elunii 4837	. . . . . . . 8 ⊢ ((𝑥 ∈ (𝑋∘RV/𝑐 ≤ 𝑛) ∧ (𝑋∘RV/𝑐 ≤ 𝑛) ∈ dom 𝑃) → 𝑥 ∈ ∪ dom 𝑃)
45	44	expcom 416	. . . . . . 7 ⊢ ((𝑋∘RV/𝑐 ≤ 𝑛) ∈ dom 𝑃 → (𝑥 ∈ (𝑋∘RV/𝑐 ≤ 𝑛) → 𝑥 ∈ ∪ dom 𝑃))
46	43, 45	syl 17	. . . . . 6 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → (𝑥 ∈ (𝑋∘RV/𝑐 ≤ 𝑛) → 𝑥 ∈ ∪ dom 𝑃))
47	46	rexlimdva 3284	. . . . 5 ⊢ (𝜑 → (∃𝑛 ∈ ℕ 𝑥 ∈ (𝑋∘RV/𝑐 ≤ 𝑛) → 𝑥 ∈ ∪ dom 𝑃))
48	38, 47	impbid 214	. . . 4 ⊢ (𝜑 → (𝑥 ∈ ∪ dom 𝑃 ↔ ∃𝑛 ∈ ℕ 𝑥 ∈ (𝑋∘RV/𝑐 ≤ 𝑛)))
49		eliun 4916	. . . 4 ⊢ (𝑥 ∈ ∪ 𝑛 ∈ ℕ (𝑋∘RV/𝑐 ≤ 𝑛) ↔ ∃𝑛 ∈ ℕ 𝑥 ∈ (𝑋∘RV/𝑐 ≤ 𝑛))
50	48, 49	syl6bbr 291	. . 3 ⊢ (𝜑 → (𝑥 ∈ ∪ dom 𝑃 ↔ 𝑥 ∈ ∪ 𝑛 ∈ ℕ (𝑋∘RV/𝑐 ≤ 𝑛)))
51	50	eqrdv 2819	. 2 ⊢ (𝜑 → ∪ dom 𝑃 = ∪ 𝑛 ∈ ℕ (𝑋∘RV/𝑐 ≤ 𝑛))
52		ovex 7183	. . 3 ⊢ (𝑋∘RV/𝑐 ≤ 𝑛) ∈ V
53	52	dfiun3 5832	. 2 ⊢ ∪ 𝑛 ∈ ℕ (𝑋∘RV/𝑐 ≤ 𝑛) = ∪ ran (𝑛 ∈ ℕ ↦ (𝑋∘RV/𝑐 ≤ 𝑛))
54	51, 53	syl6req 2873	1 ⊢ (𝜑 → ∪ ran (𝑛 ∈ ℕ ↦ (𝑋∘RV/𝑐 ≤ 𝑛)) = ∪ dom 𝑃)

Syntax hints:  ¬ wn 3   → wi 4   ∧ wa 398   = wceq 1533   ∈ wcel 2110  ∃wrex 3139  ifcif 4467  ∪ cuni 4832  ∪ ciun 4912   class class class wbr 5059   ↦ cmpt 5139  dom cdm 5550  ran crn 5551  ‘cfv 6350  (class class class)co 7150  ℝcr 10530  1c1 10532   + caddc 10534   < clt 10669   ≤ cle 10670  ℕcn 11632  ⌊cfl 13154  Probcprb 31660  rRndVarcrrv 31693  ∘_RV/𝑐corvc 31708

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1792  ax-4 1806  ax-5 1907  ax-6 1966  ax-7 2011  ax-8 2112  ax-9 2120  ax-10 2141  ax-11 2156  ax-12 2172  ax-ext 2793  ax-rep 5183  ax-sep 5196  ax-nul 5203  ax-pow 5259  ax-pr 5322  ax-un 7455  ax-inf2 9098  ax-ac2 9879  ax-cnex 10587  ax-resscn 10588  ax-1cn 10589  ax-icn 10590  ax-addcl 10591  ax-addrcl 10592  ax-mulcl 10593  ax-mulrcl 10594  ax-mulcom 10595  ax-addass 10596  ax-mulass 10597  ax-distr 10598  ax-i2m1 10599  ax-1ne0 10600  ax-1rid 10601  ax-rnegex 10602  ax-rrecex 10603  ax-cnre 10604  ax-pre-lttri 10605  ax-pre-lttrn 10606  ax-pre-ltadd 10607  ax-pre-mulgt0 10608  ax-pre-sup 10609

This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3or 1084  df-3an 1085  df-tru 1536  df-fal 1546  df-ex 1777  df-nf 1781  df-sb 2066  df-mo 2618  df-eu 2650  df-clab 2800  df-cleq 2814  df-clel 2893  df-nfc 2963  df-ne 3017  df-nel 3124  df-ral 3143  df-rex 3144  df-reu 3145  df-rmo 3146  df-rab 3147  df-v 3497  df-sbc 3773  df-csb 3884  df-dif 3939  df-un 3941  df-in 3943  df-ss 3952  df-pss 3954  df-nul 4292  df-if 4468  df-pw 4541  df-sn 4562  df-pr 4564  df-tp 4566  df-op 4568  df-uni 4833  df-int 4870  df-iun 4914  df-iin 4915  df-br 5060  df-opab 5122  df-mpt 5140  df-tr 5166  df-id 5455  df-eprel 5460  df-po 5469  df-so 5470  df-fr 5509  df-se 5510  df-we 5511  df-xp 5556  df-rel 5557  df-cnv 5558  df-co 5559  df-dm 5560  df-rn 5561  df-res 5562  df-ima 5563  df-pred 6143  df-ord 6189  df-on 6190  df-lim 6191  df-suc 6192  df-iota 6309  df-fun 6352  df-fn 6353  df-f 6354  df-f1 6355  df-fo 6356  df-f1o 6357  df-fv 6358  df-isom 6359  df-riota 7108  df-ov 7153  df-oprab 7154  df-mpo 7155  df-om 7575  df-1st 7683  df-2nd 7684  df-wrecs 7941  df-recs 8002  df-rdg 8040  df-1o 8096  df-2o 8097  df-oadd 8100  df-er 8283  df-map 8402  df-en 8504  df-dom 8505  df-sdom 8506  df-fin 8507  df-sup 8900  df-inf 8901  df-oi 8968  df-dju 9324  df-card 9362  df-acn 9365  df-ac 9536  df-pnf 10671  df-mnf 10672  df-xr 10673  df-ltxr 10674  df-le 10675  df-sub 10866  df-neg 10867  df-div 11292  df-nn 11633  df-n0 11892  df-z 11976  df-uz 12238  df-q 12343  df-ioo 12736  df-ioc 12737  df-fl 13156  df-topgen 16711  df-top 21496  df-bases 21548  df-cld 21621  df-esum 31282  df-siga 31363  df-sigagen 31393  df-brsiga 31436  df-meas 31450  df-mbfm 31504  df-prob 31661  df-rrv 31694  df-orvc 31709

This theorem is referenced by:  dstfrvclim1  31730