Theorem dstfrvunirn 29863

Description: The limit of all preimage maps by the "lower than or equal" 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 9934	. . . . . . . . . 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 29833	. . . . . . . . . . 11 ⊢ (𝜑 → 𝑋:∪ dom 𝑃⟶ℝ)
5	4	ffvelrnda 6267	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → (𝑋‘𝑥) ∈ ℝ)
6	1, 5	ifcld 4081	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥)) ∈ ℝ)
7		breq2 4587	. . . . . . . . . 10 ⊢ (1 = if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥)) → (1 ≤ 1 ↔ 1 ≤ if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))))
8		breq2 4587	. . . . . . . . . 10 ⊢ ((𝑋‘𝑥) = if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥)) → (1 ≤ (𝑋‘𝑥) ↔ 1 ≤ if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))))
9		1le1 10534	. . . . . . . . . . 11 ⊢ 1 ≤ 1
10	9	a1i 11	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) ∧ (𝑋‘𝑥) < 1) → 1 ≤ 1)
11	1, 5	lenltd 10062	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → (1 ≤ (𝑋‘𝑥) ↔ ¬ (𝑋‘𝑥) < 1))
12	11	biimpar 501	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) ∧ ¬ (𝑋‘𝑥) < 1) → 1 ≤ (𝑋‘𝑥))
13	7, 8, 10, 12	ifbothda 4073	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → 1 ≤ if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥)))
14		flge1nn 12484	. . . . . . . . 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 691	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → (⌊‘if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))) ∈ ℕ)
16	15	peano2nnd 10914	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → ((⌊‘if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))) + 1) ∈ ℕ)
17	2	adantr 480	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → 𝑃 ∈ Prob)
18	3	adantr 480	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → 𝑋 ∈ (rRndVar‘𝑃))
19	16	nnred 10912	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → ((⌊‘if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))) + 1) ∈ ℝ)
20		simpr 476	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → 𝑥 ∈ ∪ dom 𝑃)
21		breq2 4587	. . . . . . . . . 10 ⊢ (1 = if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥)) → ((𝑋‘𝑥) ≤ 1 ↔ (𝑋‘𝑥) ≤ if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))))
22		breq2 4587	. . . . . . . . . 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 480	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) ∧ (𝑋‘𝑥) < 1) → (𝑋‘𝑥) ∈ ℝ)
24		1red 9934	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) ∧ (𝑋‘𝑥) < 1) → 1 ∈ ℝ)
25		simpr 476	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) ∧ (𝑋‘𝑥) < 1) → (𝑋‘𝑥) < 1)
26	23, 24, 25	ltled 10064	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) ∧ (𝑋‘𝑥) < 1) → (𝑋‘𝑥) ≤ 1)
27	5	leidd 10473	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → (𝑋‘𝑥) ≤ (𝑋‘𝑥))
28	27	adantr 480	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) ∧ ¬ (𝑋‘𝑥) < 1) → (𝑋‘𝑥) ≤ (𝑋‘𝑥))
29	21, 22, 26, 28	ifbothda 4073	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → (𝑋‘𝑥) ≤ if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥)))
30		fllep1 12464	. . . . . . . . . 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 10073	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → (𝑋‘𝑥) ≤ ((⌊‘if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))) + 1))
33	17, 18, 19, 20, 32	dstfrvel 29862	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → 𝑥 ∈ (𝑋∘RV/𝑐 ≤ ((⌊‘if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))) + 1)))
34		oveq2 6557	. . . . . . . . 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 2673	. . . . . . . 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 3282	. . . . . . 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 691	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → ∃𝑛 ∈ ℕ 𝑥 ∈ (𝑋∘RV/𝑐 ≤ 𝑛))
38	37	ex 449	. . . . 5 ⊢ (𝜑 → (𝑥 ∈ ∪ dom 𝑃 → ∃𝑛 ∈ ℕ 𝑥 ∈ (𝑋∘RV/𝑐 ≤ 𝑛)))
39	2	adantr 480	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → 𝑃 ∈ Prob)
40	3	adantr 480	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → 𝑋 ∈ (rRndVar‘𝑃))
41		simpr 476	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → 𝑛 ∈ ℕ)
42	41	nnred 10912	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → 𝑛 ∈ ℝ)
43	39, 40, 42	orvclteel 29861	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → (𝑋∘RV/𝑐 ≤ 𝑛) ∈ dom 𝑃)
44		elunii 4377	. . . . . . . 8 ⊢ ((𝑥 ∈ (𝑋∘RV/𝑐 ≤ 𝑛) ∧ (𝑋∘RV/𝑐 ≤ 𝑛) ∈ dom 𝑃) → 𝑥 ∈ ∪ dom 𝑃)
45	44	expcom 450	. . . . . . 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 3013	. . . . 5 ⊢ (𝜑 → (∃𝑛 ∈ ℕ 𝑥 ∈ (𝑋∘RV/𝑐 ≤ 𝑛) → 𝑥 ∈ ∪ dom 𝑃))
48	38, 47	impbid 201	. . . 4 ⊢ (𝜑 → (𝑥 ∈ ∪ dom 𝑃 ↔ ∃𝑛 ∈ ℕ 𝑥 ∈ (𝑋∘RV/𝑐 ≤ 𝑛)))
49		eliun 4460	. . . 4 ⊢ (𝑥 ∈ ∪ 𝑛 ∈ ℕ (𝑋∘RV/𝑐 ≤ 𝑛) ↔ ∃𝑛 ∈ ℕ 𝑥 ∈ (𝑋∘RV/𝑐 ≤ 𝑛))
50	48, 49	syl6bbr 277	. . 3 ⊢ (𝜑 → (𝑥 ∈ ∪ dom 𝑃 ↔ 𝑥 ∈ ∪ 𝑛 ∈ ℕ (𝑋∘RV/𝑐 ≤ 𝑛)))
51	50	eqrdv 2608	. 2 ⊢ (𝜑 → ∪ dom 𝑃 = ∪ 𝑛 ∈ ℕ (𝑋∘RV/𝑐 ≤ 𝑛))
52		ovex 6577	. . 3 ⊢ (𝑋∘RV/𝑐 ≤ 𝑛) ∈ V
53	52	dfiun3 5301	. 2 ⊢ ∪ 𝑛 ∈ ℕ (𝑋∘RV/𝑐 ≤ 𝑛) = ∪ ran (𝑛 ∈ ℕ ↦ (𝑋∘RV/𝑐 ≤ 𝑛))
54	51, 53	syl6req 2661	1 ⊢ (𝜑 → ∪ ran (𝑛 ∈ ℕ ↦ (𝑋∘RV/𝑐 ≤ 𝑛)) = ∪ dom 𝑃)

Syntax hints:  ¬ wn 3   → wi 4   ∧ wa 383   = wceq 1475   ∈ wcel 1977  ∃wrex 2897  ifcif 4036  ∪ cuni 4372  ∪ ciun 4455   class class class wbr 4583   ↦ cmpt 4643  dom cdm 5038  ran crn 5039  ‘cfv 5804  (class class class)co 6549  ℝcr 9814  1c1 9816   + caddc 9818   < clt 9953   ≤ cle 9954  ℕcn 10897  ⌊cfl 12453  Probcprb 29796  rRndVarcrrv 29829  ∘_RV/𝑐corvc 29844

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-rep 4699  ax-sep 4709  ax-nul 4717  ax-pow 4769  ax-pr 4833  ax-un 6847  ax-inf2 8421  ax-ac2 9168  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-fal 1481  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-int 4411  df-iun 4457  df-iin 4458  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-se 4998  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-isom 5813  df-riota 6511  df-ov 6552  df-oprab 6553  df-mpt2 6554  df-om 6958  df-1st 7059  df-2nd 7060  df-wrecs 7294  df-recs 7355  df-rdg 7393  df-1o 7447  df-2o 7448  df-oadd 7451  df-er 7629  df-map 7746  df-en 7842  df-dom 7843  df-sdom 7844  df-fin 7845  df-sup 8231  df-inf 8232  df-oi 8298  df-card 8648  df-acn 8651  df-ac 8822  df-cda 8873  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-q 11665  df-ioo 12050  df-ioc 12051  df-fl 12455  df-topgen 15927  df-top 20521  df-bases 20522  df-cld 20633  df-esum 29417  df-siga 29498  df-sigagen 29529  df-brsiga 29572  df-meas 29586  df-mbfm 29640  df-prob 29797  df-rrv 29830  df-orvc 29845

This theorem is referenced by:  dstfrvclim1  29866