Theorem dstfrvunirn 31732

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 10642	. . . . . . . . . 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 31702	. . . . . . . . . . 11 ⊢ (𝜑 → 𝑋:∪ dom 𝑃⟶ℝ)
5	4	ffvelrnda 6851	. . . . . . . . . 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 5070	. . . . . . . . . 10 ⊢ (1 = if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥)) → (1 ≤ 1 ↔ 1 ≤ if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))))
8		breq2 5070	. . . . . . . . . 10 ⊢ ((𝑋‘𝑥) = if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥)) → (1 ≤ (𝑋‘𝑥) ↔ 1 ≤ if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))))
9		1le1 11268	. . . . . . . . . . 11 ⊢ 1 ≤ 1
10	9	a1i 11	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) ∧ (𝑋‘𝑥) < 1) → 1 ≤ 1)
11	1, 5	lenltd 10786	. . . . . . . . . . 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 13192	. . . . . . . . 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 11655	. . . . . . 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 11653	. . . . . . . 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 5070	. . . . . . . . . 10 ⊢ (1 = if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥)) → ((𝑋‘𝑥) ≤ 1 ↔ (𝑋‘𝑥) ≤ if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))))
22		breq2 5070	. . . . . . . . . 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 10642	. . . . . . . . . . 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 10788	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) ∧ (𝑋‘𝑥) < 1) → (𝑋‘𝑥) ≤ 1)
27	5	leidd 11206	. . . . . . . . . . 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 13172	. . . . . . . . . 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 10797	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → (𝑋‘𝑥) ≤ ((⌊‘if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))) + 1))
33	17, 18, 19, 20, 32	dstfrvel 31731	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ ∪ dom 𝑃) → 𝑥 ∈ (𝑋∘RV/𝑐 ≤ ((⌊‘if((𝑋‘𝑥) < 1, 1, (𝑋‘𝑥))) + 1)))
34		oveq2 7164	. . . . . . . . 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 11653	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → 𝑛 ∈ ℝ)
43	39, 40, 42	orvclteel 31730	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → (𝑋∘RV/𝑐 ≤ 𝑛) ∈ dom 𝑃)
44		elunii 4843	. . . . . . . 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 4923	. . . 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 7189	. . 3 ⊢ (𝑋∘RV/𝑐 ≤ 𝑛) ∈ V
53	52	dfiun3 5837	. 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 1537   ∈ wcel 2114  ∃wrex 3139  ifcif 4467  ∪ cuni 4838  ∪ ciun 4919   class class class wbr 5066   ↦ cmpt 5146  dom cdm 5555  ran crn 5556  ‘cfv 6355  (class class class)co 7156  ℝcr 10536  1c1 10538   + caddc 10540   < clt 10675   ≤ cle 10676  ℕcn 11638  ⌊cfl 13161  Probcprb 31665  rRndVarcrrv 31698  ∘_RV/𝑐corvc 31713

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1970  ax-7 2015  ax-8 2116  ax-9 2124  ax-10 2145  ax-11 2161  ax-12 2177  ax-ext 2793  ax-rep 5190  ax-sep 5203  ax-nul 5210  ax-pow 5266  ax-pr 5330  ax-un 7461  ax-inf2 9104  ax-ac2 9885  ax-cnex 10593  ax-resscn 10594  ax-1cn 10595  ax-icn 10596  ax-addcl 10597  ax-addrcl 10598  ax-mulcl 10599  ax-mulrcl 10600  ax-mulcom 10601  ax-addass 10602  ax-mulass 10603  ax-distr 10604  ax-i2m1 10605  ax-1ne0 10606  ax-1rid 10607  ax-rnegex 10608  ax-rrecex 10609  ax-cnre 10610  ax-pre-lttri 10611  ax-pre-lttrn 10612  ax-pre-ltadd 10613  ax-pre-mulgt0 10614  ax-pre-sup 10615

This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3or 1084  df-3an 1085  df-tru 1540  df-fal 1550  df-ex 1781  df-nf 1785  df-sb 2070  df-mo 2622  df-eu 2654  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 3496  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 4568  df-pr 4570  df-tp 4572  df-op 4574  df-uni 4839  df-int 4877  df-iun 4921  df-iin 4922  df-br 5067  df-opab 5129  df-mpt 5147  df-tr 5173  df-id 5460  df-eprel 5465  df-po 5474  df-so 5475  df-fr 5514  df-se 5515  df-we 5516  df-xp 5561  df-rel 5562  df-cnv 5563  df-co 5564  df-dm 5565  df-rn 5566  df-res 5567  df-ima 5568  df-pred 6148  df-ord 6194  df-on 6195  df-lim 6196  df-suc 6197  df-iota 6314  df-fun 6357  df-fn 6358  df-f 6359  df-f1 6360  df-fo 6361  df-f1o 6362  df-fv 6363  df-isom 6364  df-riota 7114  df-ov 7159  df-oprab 7160  df-mpo 7161  df-om 7581  df-1st 7689  df-2nd 7690  df-wrecs 7947  df-recs 8008  df-rdg 8046  df-1o 8102  df-2o 8103  df-oadd 8106  df-er 8289  df-map 8408  df-en 8510  df-dom 8511  df-sdom 8512  df-fin 8513  df-sup 8906  df-inf 8907  df-oi 8974  df-dju 9330  df-card 9368  df-acn 9371  df-ac 9542  df-pnf 10677  df-mnf 10678  df-xr 10679  df-ltxr 10680  df-le 10681  df-sub 10872  df-neg 10873  df-div 11298  df-nn 11639  df-n0 11899  df-z 11983  df-uz 12245  df-q 12350  df-ioo 12743  df-ioc 12744  df-fl 13163  df-topgen 16717  df-top 21502  df-bases 21554  df-cld 21627  df-esum 31287  df-siga 31368  df-sigagen 31398  df-brsiga 31441  df-meas 31455  df-mbfm 31509  df-prob 31666  df-rrv 31699  df-orvc 31714

This theorem is referenced by:  dstfrvclim1  31735