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Theorem mvrfval 20656
 Description: Value of the generating elements of the power series structure. (Contributed by Mario Carneiro, 7-Jan-2015.)
Hypotheses
Ref Expression
mvrfval.v 𝑉 = (𝐼 mVar 𝑅)
mvrfval.d 𝐷 = { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}
mvrfval.z 0 = (0g𝑅)
mvrfval.o 1 = (1r𝑅)
mvrfval.i (𝜑𝐼𝑊)
mvrfval.r (𝜑𝑅𝑌)
Assertion
Ref Expression
mvrfval (𝜑𝑉 = (𝑥𝐼 ↦ (𝑓𝐷 ↦ if(𝑓 = (𝑦𝐼 ↦ if(𝑦 = 𝑥, 1, 0)), 1 , 0 ))))
Distinct variable groups:   𝑥,𝑓, 0   1 ,𝑓,𝑥   𝑦,𝑓,𝐷,𝑥   𝑦,𝑊   𝑓,,𝐼,𝑥,𝑦   𝑅,𝑓,𝑥
Allowed substitution hints:   𝜑(𝑥,𝑦,𝑓,)   𝐷()   𝑅(𝑦,)   1 (𝑦,)   𝑉(𝑥,𝑦,𝑓,)   𝑊(𝑥,𝑓,)   𝑌(𝑥,𝑦,𝑓,)   0 (𝑦,)

Proof of Theorem mvrfval
Dummy variables 𝑖 𝑟 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 mvrfval.v . 2 𝑉 = (𝐼 mVar 𝑅)
2 mvrfval.i . . . 4 (𝜑𝐼𝑊)
32elexd 3489 . . 3 (𝜑𝐼 ∈ V)
4 mvrfval.r . . . 4 (𝜑𝑅𝑌)
54elexd 3489 . . 3 (𝜑𝑅 ∈ V)
62mptexd 6969 . . 3 (𝜑 → (𝑥𝐼 ↦ (𝑓𝐷 ↦ if(𝑓 = (𝑦𝐼 ↦ if(𝑦 = 𝑥, 1, 0)), 1 , 0 ))) ∈ V)
7 simpl 486 . . . . 5 ((𝑖 = 𝐼𝑟 = 𝑅) → 𝑖 = 𝐼)
87oveq2d 7156 . . . . . . . 8 ((𝑖 = 𝐼𝑟 = 𝑅) → (ℕ0m 𝑖) = (ℕ0m 𝐼))
98rabeqdv 3460 . . . . . . 7 ((𝑖 = 𝐼𝑟 = 𝑅) → { ∈ (ℕ0m 𝑖) ∣ ( “ ℕ) ∈ Fin} = { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin})
10 mvrfval.d . . . . . . 7 𝐷 = { ∈ (ℕ0m 𝐼) ∣ ( “ ℕ) ∈ Fin}
119, 10eqtr4di 2875 . . . . . 6 ((𝑖 = 𝐼𝑟 = 𝑅) → { ∈ (ℕ0m 𝑖) ∣ ( “ ℕ) ∈ Fin} = 𝐷)
12 mpteq1 5130 . . . . . . . . 9 (𝑖 = 𝐼 → (𝑦𝑖 ↦ if(𝑦 = 𝑥, 1, 0)) = (𝑦𝐼 ↦ if(𝑦 = 𝑥, 1, 0)))
1312adantr 484 . . . . . . . 8 ((𝑖 = 𝐼𝑟 = 𝑅) → (𝑦𝑖 ↦ if(𝑦 = 𝑥, 1, 0)) = (𝑦𝐼 ↦ if(𝑦 = 𝑥, 1, 0)))
1413eqeq2d 2833 . . . . . . 7 ((𝑖 = 𝐼𝑟 = 𝑅) → (𝑓 = (𝑦𝑖 ↦ if(𝑦 = 𝑥, 1, 0)) ↔ 𝑓 = (𝑦𝐼 ↦ if(𝑦 = 𝑥, 1, 0))))
15 simpr 488 . . . . . . . . 9 ((𝑖 = 𝐼𝑟 = 𝑅) → 𝑟 = 𝑅)
1615fveq2d 6656 . . . . . . . 8 ((𝑖 = 𝐼𝑟 = 𝑅) → (1r𝑟) = (1r𝑅))
17 mvrfval.o . . . . . . . 8 1 = (1r𝑅)
1816, 17eqtr4di 2875 . . . . . . 7 ((𝑖 = 𝐼𝑟 = 𝑅) → (1r𝑟) = 1 )
1915fveq2d 6656 . . . . . . . 8 ((𝑖 = 𝐼𝑟 = 𝑅) → (0g𝑟) = (0g𝑅))
20 mvrfval.z . . . . . . . 8 0 = (0g𝑅)
2119, 20eqtr4di 2875 . . . . . . 7 ((𝑖 = 𝐼𝑟 = 𝑅) → (0g𝑟) = 0 )
2214, 18, 21ifbieq12d 4466 . . . . . 6 ((𝑖 = 𝐼𝑟 = 𝑅) → if(𝑓 = (𝑦𝑖 ↦ if(𝑦 = 𝑥, 1, 0)), (1r𝑟), (0g𝑟)) = if(𝑓 = (𝑦𝐼 ↦ if(𝑦 = 𝑥, 1, 0)), 1 , 0 ))
2311, 22mpteq12dv 5127 . . . . 5 ((𝑖 = 𝐼𝑟 = 𝑅) → (𝑓 ∈ { ∈ (ℕ0m 𝑖) ∣ ( “ ℕ) ∈ Fin} ↦ if(𝑓 = (𝑦𝑖 ↦ if(𝑦 = 𝑥, 1, 0)), (1r𝑟), (0g𝑟))) = (𝑓𝐷 ↦ if(𝑓 = (𝑦𝐼 ↦ if(𝑦 = 𝑥, 1, 0)), 1 , 0 )))
247, 23mpteq12dv 5127 . . . 4 ((𝑖 = 𝐼𝑟 = 𝑅) → (𝑥𝑖 ↦ (𝑓 ∈ { ∈ (ℕ0m 𝑖) ∣ ( “ ℕ) ∈ Fin} ↦ if(𝑓 = (𝑦𝑖 ↦ if(𝑦 = 𝑥, 1, 0)), (1r𝑟), (0g𝑟)))) = (𝑥𝐼 ↦ (𝑓𝐷 ↦ if(𝑓 = (𝑦𝐼 ↦ if(𝑦 = 𝑥, 1, 0)), 1 , 0 ))))
25 df-mvr 20593 . . . 4 mVar = (𝑖 ∈ V, 𝑟 ∈ V ↦ (𝑥𝑖 ↦ (𝑓 ∈ { ∈ (ℕ0m 𝑖) ∣ ( “ ℕ) ∈ Fin} ↦ if(𝑓 = (𝑦𝑖 ↦ if(𝑦 = 𝑥, 1, 0)), (1r𝑟), (0g𝑟)))))
2624, 25ovmpoga 7288 . . 3 ((𝐼 ∈ V ∧ 𝑅 ∈ V ∧ (𝑥𝐼 ↦ (𝑓𝐷 ↦ if(𝑓 = (𝑦𝐼 ↦ if(𝑦 = 𝑥, 1, 0)), 1 , 0 ))) ∈ V) → (𝐼 mVar 𝑅) = (𝑥𝐼 ↦ (𝑓𝐷 ↦ if(𝑓 = (𝑦𝐼 ↦ if(𝑦 = 𝑥, 1, 0)), 1 , 0 ))))
273, 5, 6, 26syl3anc 1368 . 2 (𝜑 → (𝐼 mVar 𝑅) = (𝑥𝐼 ↦ (𝑓𝐷 ↦ if(𝑓 = (𝑦𝐼 ↦ if(𝑦 = 𝑥, 1, 0)), 1 , 0 ))))
281, 27syl5eq 2869 1 (𝜑𝑉 = (𝑥𝐼 ↦ (𝑓𝐷 ↦ if(𝑓 = (𝑦𝐼 ↦ if(𝑦 = 𝑥, 1, 0)), 1 , 0 ))))
 Colors of variables: wff setvar class Syntax hints:   → wi 4   ∧ wa 399   = wceq 1538   ∈ wcel 2114  {crab 3134  Vcvv 3469  ifcif 4439   ↦ cmpt 5122  ◡ccnv 5531   “ cima 5535  ‘cfv 6334  (class class class)co 7140   ↑m cmap 8393  Fincfn 8496  0cc0 10526  1c1 10527  ℕcn 11625  ℕ0cn0 11885  0gc0g 16704  1rcur 19242   mVar cmvr 20588 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1911  ax-6 1970  ax-7 2015  ax-8 2116  ax-9 2124  ax-10 2145  ax-11 2161  ax-12 2178  ax-ext 2794  ax-rep 5166  ax-sep 5179  ax-nul 5186  ax-pr 5307 This theorem depends on definitions:  df-bi 210  df-an 400  df-or 845  df-3an 1086  df-tru 1541  df-ex 1782  df-nf 1786  df-sb 2070  df-mo 2622  df-eu 2653  df-clab 2801  df-cleq 2815  df-clel 2894  df-nfc 2962  df-ne 3012  df-ral 3135  df-rex 3136  df-reu 3137  df-rab 3139  df-v 3471  df-sbc 3748  df-csb 3856  df-dif 3911  df-un 3913  df-in 3915  df-ss 3925  df-nul 4266  df-if 4440  df-sn 4540  df-pr 4542  df-op 4546  df-uni 4814  df-iun 4896  df-br 5043  df-opab 5105  df-mpt 5123  df-id 5437  df-xp 5538  df-rel 5539  df-cnv 5540  df-co 5541  df-dm 5542  df-rn 5543  df-res 5544  df-ima 5545  df-iota 6293  df-fun 6336  df-fn 6337  df-f 6338  df-f1 6339  df-fo 6340  df-f1o 6341  df-fv 6342  df-ov 7143  df-oprab 7144  df-mpo 7145  df-mvr 20593 This theorem is referenced by:  mvrval  20657  mvrf  20660  subrgmvr  20699
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