Users' Mathboxes Mathbox for Glauco Siliprandi < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >   Mathboxes  >  meadjiunlem Structured version   Visualization version   GIF version

Theorem meadjiunlem 40015
Description: The sum of nonnegative extended reals, restricted to the range of another function. (Contributed by Glauco Siliprandi, 17-Aug-2020.)
Hypotheses
Ref Expression
meadjiunlem.f (𝜑𝑀 ∈ Meas)
meadjiunlem.3 𝑆 = dom 𝑀
meadjiunlem.x (𝜑𝑋𝑉)
meadjiunlem.g (𝜑𝐺:𝑋𝑆)
meadjiunlem.y 𝑌 = {𝑖𝑋 ∣ (𝐺𝑖) ≠ ∅}
meadjiunlem.dj (𝜑Disj 𝑖𝑋 (𝐺𝑖))
Assertion
Ref Expression
meadjiunlem (𝜑 → (Σ^‘(𝑀 ↾ ran 𝐺)) = (Σ^‘(𝑀𝐺)))
Distinct variable groups:   𝑖,𝐺   𝑖,𝑋   𝑖,𝑌   𝜑,𝑖
Allowed substitution hints:   𝑆(𝑖)   𝑀(𝑖)   𝑉(𝑖)

Proof of Theorem meadjiunlem
Dummy variables 𝑗 𝑘 𝑥 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 nfv 1840 . . . 4 𝑘𝜑
2 meadjiunlem.g . . . . . 6 (𝜑𝐺:𝑋𝑆)
3 meadjiunlem.x . . . . . 6 (𝜑𝑋𝑉)
42, 3jca 554 . . . . 5 (𝜑 → (𝐺:𝑋𝑆𝑋𝑉))
5 fex 6450 . . . . 5 ((𝐺:𝑋𝑆𝑋𝑉) → 𝐺 ∈ V)
6 rnexg 7052 . . . . 5 (𝐺 ∈ V → ran 𝐺 ∈ V)
74, 5, 63syl 18 . . . 4 (𝜑 → ran 𝐺 ∈ V)
8 difssd 3721 . . . 4 (𝜑 → (ran 𝐺 ∖ {∅}) ⊆ ran 𝐺)
9 meadjiunlem.f . . . . . . 7 (𝜑𝑀 ∈ Meas)
10 meadjiunlem.3 . . . . . . 7 𝑆 = dom 𝑀
119, 10meaf 40003 . . . . . 6 (𝜑𝑀:𝑆⟶(0[,]+∞))
1211adantr 481 . . . . 5 ((𝜑𝑘 ∈ (ran 𝐺 ∖ {∅})) → 𝑀:𝑆⟶(0[,]+∞))
13 frn 6015 . . . . . . . 8 (𝐺:𝑋𝑆 → ran 𝐺𝑆)
142, 13syl 17 . . . . . . 7 (𝜑 → ran 𝐺𝑆)
1514adantr 481 . . . . . 6 ((𝜑𝑘 ∈ (ran 𝐺 ∖ {∅})) → ran 𝐺𝑆)
168sselda 3587 . . . . . 6 ((𝜑𝑘 ∈ (ran 𝐺 ∖ {∅})) → 𝑘 ∈ ran 𝐺)
1715, 16sseldd 3588 . . . . 5 ((𝜑𝑘 ∈ (ran 𝐺 ∖ {∅})) → 𝑘𝑆)
1812, 17ffvelrnd 6321 . . . 4 ((𝜑𝑘 ∈ (ran 𝐺 ∖ {∅})) → (𝑀𝑘) ∈ (0[,]+∞))
19 simpl 473 . . . . 5 ((𝜑𝑘 ∈ (ran 𝐺 ∖ (ran 𝐺 ∖ {∅}))) → 𝜑)
20 id 22 . . . . . . . 8 (𝑘 ∈ (ran 𝐺 ∖ (ran 𝐺 ∖ {∅})) → 𝑘 ∈ (ran 𝐺 ∖ (ran 𝐺 ∖ {∅})))
21 dfin4 3848 . . . . . . . . 9 (ran 𝐺 ∩ {∅}) = (ran 𝐺 ∖ (ran 𝐺 ∖ {∅}))
2221eqcomi 2630 . . . . . . . 8 (ran 𝐺 ∖ (ran 𝐺 ∖ {∅})) = (ran 𝐺 ∩ {∅})
2320, 22syl6eleq 2708 . . . . . . 7 (𝑘 ∈ (ran 𝐺 ∖ (ran 𝐺 ∖ {∅})) → 𝑘 ∈ (ran 𝐺 ∩ {∅}))
24 elinel2 3783 . . . . . . . 8 (𝑘 ∈ (ran 𝐺 ∩ {∅}) → 𝑘 ∈ {∅})
25 elsni 4170 . . . . . . . 8 (𝑘 ∈ {∅} → 𝑘 = ∅)
2624, 25syl 17 . . . . . . 7 (𝑘 ∈ (ran 𝐺 ∩ {∅}) → 𝑘 = ∅)
2723, 26syl 17 . . . . . 6 (𝑘 ∈ (ran 𝐺 ∖ (ran 𝐺 ∖ {∅})) → 𝑘 = ∅)
2827adantl 482 . . . . 5 ((𝜑𝑘 ∈ (ran 𝐺 ∖ (ran 𝐺 ∖ {∅}))) → 𝑘 = ∅)
29 simpr 477 . . . . . . 7 ((𝜑𝑘 = ∅) → 𝑘 = ∅)
3029fveq2d 6157 . . . . . 6 ((𝜑𝑘 = ∅) → (𝑀𝑘) = (𝑀‘∅))
319mea0 40004 . . . . . . 7 (𝜑 → (𝑀‘∅) = 0)
3231adantr 481 . . . . . 6 ((𝜑𝑘 = ∅) → (𝑀‘∅) = 0)
3330, 32eqtrd 2655 . . . . 5 ((𝜑𝑘 = ∅) → (𝑀𝑘) = 0)
3419, 28, 33syl2anc 692 . . . 4 ((𝜑𝑘 ∈ (ran 𝐺 ∖ (ran 𝐺 ∖ {∅}))) → (𝑀𝑘) = 0)
351, 7, 8, 18, 34sge0ss 39962 . . 3 (𝜑 → (Σ^‘(𝑘 ∈ (ran 𝐺 ∖ {∅}) ↦ (𝑀𝑘))) = (Σ^‘(𝑘 ∈ ran 𝐺 ↦ (𝑀𝑘))))
3635eqcomd 2627 . 2 (𝜑 → (Σ^‘(𝑘 ∈ ran 𝐺 ↦ (𝑀𝑘))) = (Σ^‘(𝑘 ∈ (ran 𝐺 ∖ {∅}) ↦ (𝑀𝑘))))
3711, 14feqresmpt 6212 . . 3 (𝜑 → (𝑀 ↾ ran 𝐺) = (𝑘 ∈ ran 𝐺 ↦ (𝑀𝑘)))
3837fveq2d 6157 . 2 (𝜑 → (Σ^‘(𝑀 ↾ ran 𝐺)) = (Σ^‘(𝑘 ∈ ran 𝐺 ↦ (𝑀𝑘))))
392ffvelrnda 6320 . . . . 5 ((𝜑𝑗𝑋) → (𝐺𝑗) ∈ 𝑆)
402feqmptd 6211 . . . . 5 (𝜑𝐺 = (𝑗𝑋 ↦ (𝐺𝑗)))
4111feqmptd 6211 . . . . 5 (𝜑𝑀 = (𝑘𝑆 ↦ (𝑀𝑘)))
42 fveq2 6153 . . . . 5 (𝑘 = (𝐺𝑗) → (𝑀𝑘) = (𝑀‘(𝐺𝑗)))
4339, 40, 41, 42fmptco 6357 . . . 4 (𝜑 → (𝑀𝐺) = (𝑗𝑋 ↦ (𝑀‘(𝐺𝑗))))
4443fveq2d 6157 . . 3 (𝜑 → (Σ^‘(𝑀𝐺)) = (Σ^‘(𝑗𝑋 ↦ (𝑀‘(𝐺𝑗)))))
45 nfv 1840 . . . . 5 𝑗𝜑
46 meadjiunlem.y . . . . . 6 𝑌 = {𝑖𝑋 ∣ (𝐺𝑖) ≠ ∅}
47 ssrab2 3671 . . . . . . 7 {𝑖𝑋 ∣ (𝐺𝑖) ≠ ∅} ⊆ 𝑋
4847a1i 11 . . . . . 6 (𝜑 → {𝑖𝑋 ∣ (𝐺𝑖) ≠ ∅} ⊆ 𝑋)
4946, 48syl5eqss 3633 . . . . 5 (𝜑𝑌𝑋)
5011adantr 481 . . . . . 6 ((𝜑𝑗𝑌) → 𝑀:𝑆⟶(0[,]+∞))
512adantr 481 . . . . . . 7 ((𝜑𝑗𝑌) → 𝐺:𝑋𝑆)
5249sselda 3587 . . . . . . 7 ((𝜑𝑗𝑌) → 𝑗𝑋)
5351, 52ffvelrnd 6321 . . . . . 6 ((𝜑𝑗𝑌) → (𝐺𝑗) ∈ 𝑆)
5450, 53ffvelrnd 6321 . . . . 5 ((𝜑𝑗𝑌) → (𝑀‘(𝐺𝑗)) ∈ (0[,]+∞))
55 eldifi 3715 . . . . . . . . . . 11 (𝑗 ∈ (𝑋𝑌) → 𝑗𝑋)
5655ad2antlr 762 . . . . . . . . . 10 (((𝜑𝑗 ∈ (𝑋𝑌)) ∧ (𝑀‘(𝐺𝑗)) ≠ 0) → 𝑗𝑋)
57 fveq2 6153 . . . . . . . . . . . . . . 15 ((𝐺𝑗) = ∅ → (𝑀‘(𝐺𝑗)) = (𝑀‘∅))
5857adantl 482 . . . . . . . . . . . . . 14 ((𝜑 ∧ (𝐺𝑗) = ∅) → (𝑀‘(𝐺𝑗)) = (𝑀‘∅))
599adantr 481 . . . . . . . . . . . . . . 15 ((𝜑 ∧ (𝐺𝑗) = ∅) → 𝑀 ∈ Meas)
6059mea0 40004 . . . . . . . . . . . . . 14 ((𝜑 ∧ (𝐺𝑗) = ∅) → (𝑀‘∅) = 0)
6158, 60eqtrd 2655 . . . . . . . . . . . . 13 ((𝜑 ∧ (𝐺𝑗) = ∅) → (𝑀‘(𝐺𝑗)) = 0)
6261ad4ant14 1290 . . . . . . . . . . . 12 ((((𝜑𝑗 ∈ (𝑋𝑌)) ∧ (𝑀‘(𝐺𝑗)) ≠ 0) ∧ (𝐺𝑗) = ∅) → (𝑀‘(𝐺𝑗)) = 0)
63 neneq 2796 . . . . . . . . . . . . 13 ((𝑀‘(𝐺𝑗)) ≠ 0 → ¬ (𝑀‘(𝐺𝑗)) = 0)
6463ad2antlr 762 . . . . . . . . . . . 12 ((((𝜑𝑗 ∈ (𝑋𝑌)) ∧ (𝑀‘(𝐺𝑗)) ≠ 0) ∧ (𝐺𝑗) = ∅) → ¬ (𝑀‘(𝐺𝑗)) = 0)
6562, 64pm2.65da 599 . . . . . . . . . . 11 (((𝜑𝑗 ∈ (𝑋𝑌)) ∧ (𝑀‘(𝐺𝑗)) ≠ 0) → ¬ (𝐺𝑗) = ∅)
6665neqned 2797 . . . . . . . . . 10 (((𝜑𝑗 ∈ (𝑋𝑌)) ∧ (𝑀‘(𝐺𝑗)) ≠ 0) → (𝐺𝑗) ≠ ∅)
6756, 66jca 554 . . . . . . . . 9 (((𝜑𝑗 ∈ (𝑋𝑌)) ∧ (𝑀‘(𝐺𝑗)) ≠ 0) → (𝑗𝑋 ∧ (𝐺𝑗) ≠ ∅))
68 fveq2 6153 . . . . . . . . . . 11 (𝑖 = 𝑗 → (𝐺𝑖) = (𝐺𝑗))
6968neeq1d 2849 . . . . . . . . . 10 (𝑖 = 𝑗 → ((𝐺𝑖) ≠ ∅ ↔ (𝐺𝑗) ≠ ∅))
7069elrab 3350 . . . . . . . . 9 (𝑗 ∈ {𝑖𝑋 ∣ (𝐺𝑖) ≠ ∅} ↔ (𝑗𝑋 ∧ (𝐺𝑗) ≠ ∅))
7167, 70sylibr 224 . . . . . . . 8 (((𝜑𝑗 ∈ (𝑋𝑌)) ∧ (𝑀‘(𝐺𝑗)) ≠ 0) → 𝑗 ∈ {𝑖𝑋 ∣ (𝐺𝑖) ≠ ∅})
7271, 46syl6eleqr 2709 . . . . . . 7 (((𝜑𝑗 ∈ (𝑋𝑌)) ∧ (𝑀‘(𝐺𝑗)) ≠ 0) → 𝑗𝑌)
73 eldifn 3716 . . . . . . . 8 (𝑗 ∈ (𝑋𝑌) → ¬ 𝑗𝑌)
7473ad2antlr 762 . . . . . . 7 (((𝜑𝑗 ∈ (𝑋𝑌)) ∧ (𝑀‘(𝐺𝑗)) ≠ 0) → ¬ 𝑗𝑌)
7572, 74pm2.65da 599 . . . . . 6 ((𝜑𝑗 ∈ (𝑋𝑌)) → ¬ (𝑀‘(𝐺𝑗)) ≠ 0)
76 nne 2794 . . . . . 6 (¬ (𝑀‘(𝐺𝑗)) ≠ 0 ↔ (𝑀‘(𝐺𝑗)) = 0)
7775, 76sylib 208 . . . . 5 ((𝜑𝑗 ∈ (𝑋𝑌)) → (𝑀‘(𝐺𝑗)) = 0)
7845, 3, 49, 54, 77sge0ss 39962 . . . 4 (𝜑 → (Σ^‘(𝑗𝑌 ↦ (𝑀‘(𝐺𝑗)))) = (Σ^‘(𝑗𝑋 ↦ (𝑀‘(𝐺𝑗)))))
7978eqcomd 2627 . . 3 (𝜑 → (Σ^‘(𝑗𝑋 ↦ (𝑀‘(𝐺𝑗)))) = (Σ^‘(𝑗𝑌 ↦ (𝑀‘(𝐺𝑗)))))
803, 49ssexd 4770 . . . . 5 (𝜑𝑌 ∈ V)
81 nfv 1840 . . . . . . . . 9 𝑖𝜑
82 eqid 2621 . . . . . . . . 9 (𝑖𝑌 ↦ (𝐺𝑖)) = (𝑖𝑌 ↦ (𝐺𝑖))
832ffnd 6008 . . . . . . . . . . . . 13 (𝜑𝐺 Fn 𝑋)
84 dffn3 6016 . . . . . . . . . . . . 13 (𝐺 Fn 𝑋𝐺:𝑋⟶ran 𝐺)
8583, 84sylib 208 . . . . . . . . . . . 12 (𝜑𝐺:𝑋⟶ran 𝐺)
8685adantr 481 . . . . . . . . . . 11 ((𝜑𝑖𝑌) → 𝐺:𝑋⟶ran 𝐺)
8749sselda 3587 . . . . . . . . . . 11 ((𝜑𝑖𝑌) → 𝑖𝑋)
8886, 87ffvelrnd 6321 . . . . . . . . . 10 ((𝜑𝑖𝑌) → (𝐺𝑖) ∈ ran 𝐺)
8946eleq2i 2690 . . . . . . . . . . . . . . 15 (𝑖𝑌𝑖 ∈ {𝑖𝑋 ∣ (𝐺𝑖) ≠ ∅})
90 rabid 3109 . . . . . . . . . . . . . . 15 (𝑖 ∈ {𝑖𝑋 ∣ (𝐺𝑖) ≠ ∅} ↔ (𝑖𝑋 ∧ (𝐺𝑖) ≠ ∅))
9189, 90bitri 264 . . . . . . . . . . . . . 14 (𝑖𝑌 ↔ (𝑖𝑋 ∧ (𝐺𝑖) ≠ ∅))
9291biimpi 206 . . . . . . . . . . . . 13 (𝑖𝑌 → (𝑖𝑋 ∧ (𝐺𝑖) ≠ ∅))
9392simprd 479 . . . . . . . . . . . 12 (𝑖𝑌 → (𝐺𝑖) ≠ ∅)
9493adantl 482 . . . . . . . . . . 11 ((𝜑𝑖𝑌) → (𝐺𝑖) ≠ ∅)
95 nelsn 4188 . . . . . . . . . . 11 ((𝐺𝑖) ≠ ∅ → ¬ (𝐺𝑖) ∈ {∅})
9694, 95syl 17 . . . . . . . . . 10 ((𝜑𝑖𝑌) → ¬ (𝐺𝑖) ∈ {∅})
9788, 96eldifd 3570 . . . . . . . . 9 ((𝜑𝑖𝑌) → (𝐺𝑖) ∈ (ran 𝐺 ∖ {∅}))
98 meadjiunlem.dj . . . . . . . . . 10 (𝜑Disj 𝑖𝑋 (𝐺𝑖))
99 disjss1 4594 . . . . . . . . . 10 (𝑌𝑋 → (Disj 𝑖𝑋 (𝐺𝑖) → Disj 𝑖𝑌 (𝐺𝑖)))
10049, 98, 99sylc 65 . . . . . . . . 9 (𝜑Disj 𝑖𝑌 (𝐺𝑖))
10181, 82, 97, 94, 100disjf1 38874 . . . . . . . 8 (𝜑 → (𝑖𝑌 ↦ (𝐺𝑖)):𝑌1-1→(ran 𝐺 ∖ {∅}))
1022, 49feqresmpt 6212 . . . . . . . . 9 (𝜑 → (𝐺𝑌) = (𝑖𝑌 ↦ (𝐺𝑖)))
103 f1eq1 6058 . . . . . . . . 9 ((𝐺𝑌) = (𝑖𝑌 ↦ (𝐺𝑖)) → ((𝐺𝑌):𝑌1-1→(ran 𝐺 ∖ {∅}) ↔ (𝑖𝑌 ↦ (𝐺𝑖)):𝑌1-1→(ran 𝐺 ∖ {∅})))
104102, 103syl 17 . . . . . . . 8 (𝜑 → ((𝐺𝑌):𝑌1-1→(ran 𝐺 ∖ {∅}) ↔ (𝑖𝑌 ↦ (𝐺𝑖)):𝑌1-1→(ran 𝐺 ∖ {∅})))
105101, 104mpbird 247 . . . . . . 7 (𝜑 → (𝐺𝑌):𝑌1-1→(ran 𝐺 ∖ {∅}))
106102rneqd 5318 . . . . . . . . 9 (𝜑 → ran (𝐺𝑌) = ran (𝑖𝑌 ↦ (𝐺𝑖)))
10797ralrimiva 2961 . . . . . . . . . 10 (𝜑 → ∀𝑖𝑌 (𝐺𝑖) ∈ (ran 𝐺 ∖ {∅}))
10882rnmptss 6353 . . . . . . . . . 10 (∀𝑖𝑌 (𝐺𝑖) ∈ (ran 𝐺 ∖ {∅}) → ran (𝑖𝑌 ↦ (𝐺𝑖)) ⊆ (ran 𝐺 ∖ {∅}))
109107, 108syl 17 . . . . . . . . 9 (𝜑 → ran (𝑖𝑌 ↦ (𝐺𝑖)) ⊆ (ran 𝐺 ∖ {∅}))
110106, 109eqsstrd 3623 . . . . . . . 8 (𝜑 → ran (𝐺𝑌) ⊆ (ran 𝐺 ∖ {∅}))
111 simpl 473 . . . . . . . . . . 11 ((𝜑𝑥 ∈ (ran 𝐺 ∖ {∅})) → 𝜑)
112 eldifi 3715 . . . . . . . . . . . 12 (𝑥 ∈ (ran 𝐺 ∖ {∅}) → 𝑥 ∈ ran 𝐺)
113112adantl 482 . . . . . . . . . . 11 ((𝜑𝑥 ∈ (ran 𝐺 ∖ {∅})) → 𝑥 ∈ ran 𝐺)
114 eldifsni 4294 . . . . . . . . . . . 12 (𝑥 ∈ (ran 𝐺 ∖ {∅}) → 𝑥 ≠ ∅)
115114adantl 482 . . . . . . . . . . 11 ((𝜑𝑥 ∈ (ran 𝐺 ∖ {∅})) → 𝑥 ≠ ∅)
116 simpr 477 . . . . . . . . . . . . . 14 ((𝜑𝑥 ∈ ran 𝐺) → 𝑥 ∈ ran 𝐺)
117 fvelrnb 6205 . . . . . . . . . . . . . . . 16 (𝐺 Fn 𝑋 → (𝑥 ∈ ran 𝐺 ↔ ∃𝑖𝑋 (𝐺𝑖) = 𝑥))
11883, 117syl 17 . . . . . . . . . . . . . . 15 (𝜑 → (𝑥 ∈ ran 𝐺 ↔ ∃𝑖𝑋 (𝐺𝑖) = 𝑥))
119118adantr 481 . . . . . . . . . . . . . 14 ((𝜑𝑥 ∈ ran 𝐺) → (𝑥 ∈ ran 𝐺 ↔ ∃𝑖𝑋 (𝐺𝑖) = 𝑥))
120116, 119mpbid 222 . . . . . . . . . . . . 13 ((𝜑𝑥 ∈ ran 𝐺) → ∃𝑖𝑋 (𝐺𝑖) = 𝑥)
1211203adant3 1079 . . . . . . . . . . . 12 ((𝜑𝑥 ∈ ran 𝐺𝑥 ≠ ∅) → ∃𝑖𝑋 (𝐺𝑖) = 𝑥)
122 id 22 . . . . . . . . . . . . . . . . . 18 ((𝐺𝑖) = 𝑥 → (𝐺𝑖) = 𝑥)
123122eqcomd 2627 . . . . . . . . . . . . . . . . 17 ((𝐺𝑖) = 𝑥𝑥 = (𝐺𝑖))
1241233ad2ant3 1082 . . . . . . . . . . . . . . . 16 (((𝜑𝑥 ≠ ∅) ∧ 𝑖𝑋 ∧ (𝐺𝑖) = 𝑥) → 𝑥 = (𝐺𝑖))
125 simp1l 1083 . . . . . . . . . . . . . . . . 17 (((𝜑𝑥 ≠ ∅) ∧ 𝑖𝑋 ∧ (𝐺𝑖) = 𝑥) → 𝜑)
126 simp2 1060 . . . . . . . . . . . . . . . . 17 (((𝜑𝑥 ≠ ∅) ∧ 𝑖𝑋 ∧ (𝐺𝑖) = 𝑥) → 𝑖𝑋)
127 simpr 477 . . . . . . . . . . . . . . . . . . . 20 ((𝑥 ≠ ∅ ∧ (𝐺𝑖) = 𝑥) → (𝐺𝑖) = 𝑥)
128 simpl 473 . . . . . . . . . . . . . . . . . . . 20 ((𝑥 ≠ ∅ ∧ (𝐺𝑖) = 𝑥) → 𝑥 ≠ ∅)
129127, 128eqnetrd 2857 . . . . . . . . . . . . . . . . . . 19 ((𝑥 ≠ ∅ ∧ (𝐺𝑖) = 𝑥) → (𝐺𝑖) ≠ ∅)
130129adantll 749 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑥 ≠ ∅) ∧ (𝐺𝑖) = 𝑥) → (𝐺𝑖) ≠ ∅)
1311303adant2 1078 . . . . . . . . . . . . . . . . 17 (((𝜑𝑥 ≠ ∅) ∧ 𝑖𝑋 ∧ (𝐺𝑖) = 𝑥) → (𝐺𝑖) ≠ ∅)
13291biimpri 218 . . . . . . . . . . . . . . . . . . . 20 ((𝑖𝑋 ∧ (𝐺𝑖) ≠ ∅) → 𝑖𝑌)
133 fvex 6163 . . . . . . . . . . . . . . . . . . . . 21 (𝐺𝑖) ∈ V
134133a1i 11 . . . . . . . . . . . . . . . . . . . 20 ((𝑖𝑋 ∧ (𝐺𝑖) ≠ ∅) → (𝐺𝑖) ∈ V)
13582elrnmpt1 5339 . . . . . . . . . . . . . . . . . . . 20 ((𝑖𝑌 ∧ (𝐺𝑖) ∈ V) → (𝐺𝑖) ∈ ran (𝑖𝑌 ↦ (𝐺𝑖)))
136132, 134, 135syl2anc 692 . . . . . . . . . . . . . . . . . . 19 ((𝑖𝑋 ∧ (𝐺𝑖) ≠ ∅) → (𝐺𝑖) ∈ ran (𝑖𝑌 ↦ (𝐺𝑖)))
1371363adant1 1077 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑖𝑋 ∧ (𝐺𝑖) ≠ ∅) → (𝐺𝑖) ∈ ran (𝑖𝑌 ↦ (𝐺𝑖)))
138106eqcomd 2627 . . . . . . . . . . . . . . . . . . 19 (𝜑 → ran (𝑖𝑌 ↦ (𝐺𝑖)) = ran (𝐺𝑌))
1391383ad2ant1 1080 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑖𝑋 ∧ (𝐺𝑖) ≠ ∅) → ran (𝑖𝑌 ↦ (𝐺𝑖)) = ran (𝐺𝑌))
140137, 139eleqtrd 2700 . . . . . . . . . . . . . . . . 17 ((𝜑𝑖𝑋 ∧ (𝐺𝑖) ≠ ∅) → (𝐺𝑖) ∈ ran (𝐺𝑌))
141125, 126, 131, 140syl3anc 1323 . . . . . . . . . . . . . . . 16 (((𝜑𝑥 ≠ ∅) ∧ 𝑖𝑋 ∧ (𝐺𝑖) = 𝑥) → (𝐺𝑖) ∈ ran (𝐺𝑌))
142124, 141eqeltrd 2698 . . . . . . . . . . . . . . 15 (((𝜑𝑥 ≠ ∅) ∧ 𝑖𝑋 ∧ (𝐺𝑖) = 𝑥) → 𝑥 ∈ ran (𝐺𝑌))
1431423exp 1261 . . . . . . . . . . . . . 14 ((𝜑𝑥 ≠ ∅) → (𝑖𝑋 → ((𝐺𝑖) = 𝑥𝑥 ∈ ran (𝐺𝑌))))
144143rexlimdv 3024 . . . . . . . . . . . . 13 ((𝜑𝑥 ≠ ∅) → (∃𝑖𝑋 (𝐺𝑖) = 𝑥𝑥 ∈ ran (𝐺𝑌)))
1451443adant2 1078 . . . . . . . . . . . 12 ((𝜑𝑥 ∈ ran 𝐺𝑥 ≠ ∅) → (∃𝑖𝑋 (𝐺𝑖) = 𝑥𝑥 ∈ ran (𝐺𝑌)))
146121, 145mpd 15 . . . . . . . . . . 11 ((𝜑𝑥 ∈ ran 𝐺𝑥 ≠ ∅) → 𝑥 ∈ ran (𝐺𝑌))
147111, 113, 115, 146syl3anc 1323 . . . . . . . . . 10 ((𝜑𝑥 ∈ (ran 𝐺 ∖ {∅})) → 𝑥 ∈ ran (𝐺𝑌))
148147ralrimiva 2961 . . . . . . . . 9 (𝜑 → ∀𝑥 ∈ (ran 𝐺 ∖ {∅})𝑥 ∈ ran (𝐺𝑌))
149 dfss3 3577 . . . . . . . . 9 ((ran 𝐺 ∖ {∅}) ⊆ ran (𝐺𝑌) ↔ ∀𝑥 ∈ (ran 𝐺 ∖ {∅})𝑥 ∈ ran (𝐺𝑌))
150148, 149sylibr 224 . . . . . . . 8 (𝜑 → (ran 𝐺 ∖ {∅}) ⊆ ran (𝐺𝑌))
151110, 150eqssd 3604 . . . . . . 7 (𝜑 → ran (𝐺𝑌) = (ran 𝐺 ∖ {∅}))
152105, 151jca 554 . . . . . 6 (𝜑 → ((𝐺𝑌):𝑌1-1→(ran 𝐺 ∖ {∅}) ∧ ran (𝐺𝑌) = (ran 𝐺 ∖ {∅})))
153 dff1o5 6108 . . . . . 6 ((𝐺𝑌):𝑌1-1-onto→(ran 𝐺 ∖ {∅}) ↔ ((𝐺𝑌):𝑌1-1→(ran 𝐺 ∖ {∅}) ∧ ran (𝐺𝑌) = (ran 𝐺 ∖ {∅})))
154152, 153sylibr 224 . . . . 5 (𝜑 → (𝐺𝑌):𝑌1-1-onto→(ran 𝐺 ∖ {∅}))
155 fvres 6169 . . . . . 6 (𝑗𝑌 → ((𝐺𝑌)‘𝑗) = (𝐺𝑗))
156155adantl 482 . . . . 5 ((𝜑𝑗𝑌) → ((𝐺𝑌)‘𝑗) = (𝐺𝑗))
1571, 45, 42, 80, 154, 156, 18sge0f1o 39932 . . . 4 (𝜑 → (Σ^‘(𝑘 ∈ (ran 𝐺 ∖ {∅}) ↦ (𝑀𝑘))) = (Σ^‘(𝑗𝑌 ↦ (𝑀‘(𝐺𝑗)))))
158157eqcomd 2627 . . 3 (𝜑 → (Σ^‘(𝑗𝑌 ↦ (𝑀‘(𝐺𝑗)))) = (Σ^‘(𝑘 ∈ (ran 𝐺 ∖ {∅}) ↦ (𝑀𝑘))))
15944, 79, 1583eqtrd 2659 . 2 (𝜑 → (Σ^‘(𝑀𝐺)) = (Σ^‘(𝑘 ∈ (ran 𝐺 ∖ {∅}) ↦ (𝑀𝑘))))
16036, 38, 1593eqtr4d 2665 1 (𝜑 → (Σ^‘(𝑀 ↾ ran 𝐺)) = (Σ^‘(𝑀𝐺)))
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wb 196  wa 384  w3a 1036   = wceq 1480  wcel 1987  wne 2790  wral 2907  wrex 2908  {crab 2911  Vcvv 3189  cdif 3556  cin 3558  wss 3559  c0 3896  {csn 4153  Disj wdisj 4588  cmpt 4678  dom cdm 5079  ran crn 5080  cres 5081  ccom 5083   Fn wfn 5847  wf 5848  1-1wf1 5849  1-1-ontowf1o 5851  cfv 5852  (class class class)co 6610  0cc0 9888  +∞cpnf 10023  [,]cicc 12128  Σ^csumge0 39912  Meascmea 39999
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1719  ax-4 1734  ax-5 1836  ax-6 1885  ax-7 1932  ax-8 1989  ax-9 1996  ax-10 2016  ax-11 2031  ax-12 2044  ax-13 2245  ax-ext 2601  ax-rep 4736  ax-sep 4746  ax-nul 4754  ax-pow 4808  ax-pr 4872  ax-un 6909  ax-inf2 8490  ax-cnex 9944  ax-resscn 9945  ax-1cn 9946  ax-icn 9947  ax-addcl 9948  ax-addrcl 9949  ax-mulcl 9950  ax-mulrcl 9951  ax-mulcom 9952  ax-addass 9953  ax-mulass 9954  ax-distr 9955  ax-i2m1 9956  ax-1ne0 9957  ax-1rid 9958  ax-rnegex 9959  ax-rrecex 9960  ax-cnre 9961  ax-pre-lttri 9962  ax-pre-lttrn 9963  ax-pre-ltadd 9964  ax-pre-mulgt0 9965  ax-pre-sup 9966
This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1037  df-3an 1038  df-tru 1483  df-fal 1486  df-ex 1702  df-nf 1707  df-sb 1878  df-eu 2473  df-mo 2474  df-clab 2608  df-cleq 2614  df-clel 2617  df-nfc 2750  df-ne 2791  df-nel 2894  df-ral 2912  df-rex 2913  df-reu 2914  df-rmo 2915  df-rab 2916  df-v 3191  df-sbc 3422  df-csb 3519  df-dif 3562  df-un 3564  df-in 3566  df-ss 3573  df-pss 3575  df-nul 3897  df-if 4064  df-pw 4137  df-sn 4154  df-pr 4156  df-tp 4158  df-op 4160  df-uni 4408  df-int 4446  df-iun 4492  df-disj 4589  df-br 4619  df-opab 4679  df-mpt 4680  df-tr 4718  df-eprel 4990  df-id 4994  df-po 5000  df-so 5001  df-fr 5038  df-se 5039  df-we 5040  df-xp 5085  df-rel 5086  df-cnv 5087  df-co 5088  df-dm 5089  df-rn 5090  df-res 5091  df-ima 5092  df-pred 5644  df-ord 5690  df-on 5691  df-lim 5692  df-suc 5693  df-iota 5815  df-fun 5854  df-fn 5855  df-f 5856  df-f1 5857  df-fo 5858  df-f1o 5859  df-fv 5860  df-isom 5861  df-riota 6571  df-ov 6613  df-oprab 6614  df-mpt2 6615  df-om 7020  df-1st 7120  df-2nd 7121  df-wrecs 7359  df-recs 7420  df-rdg 7458  df-1o 7512  df-oadd 7516  df-er 7694  df-en 7908  df-dom 7909  df-sdom 7910  df-fin 7911  df-sup 8300  df-oi 8367  df-card 8717  df-pnf 10028  df-mnf 10029  df-xr 10030  df-ltxr 10031  df-le 10032  df-sub 10220  df-neg 10221  df-div 10637  df-nn 10973  df-2 11031  df-3 11032  df-n0 11245  df-z 11330  df-uz 11640  df-rp 11785  df-xadd 11899  df-ico 12131  df-icc 12132  df-fz 12277  df-fzo 12415  df-seq 12750  df-exp 12809  df-hash 13066  df-cj 13781  df-re 13782  df-im 13783  df-sqrt 13917  df-abs 13918  df-clim 14161  df-sum 14359  df-sumge0 39913  df-mea 40000
This theorem is referenced by:  meadjiun  40016
  Copyright terms: Public domain W3C validator