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Theorem mvrval2 19184
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)
mvrval.x (𝜑𝑋𝐼)
mvrval2.f (𝜑𝐹𝐷)
Assertion
Ref Expression
mvrval2 (𝜑 → ((𝑉𝑋)‘𝐹) = if(𝐹 = (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)), 1 , 0 ))
Distinct variable groups:   𝑦,𝐷   𝑦,𝑊   𝑦,,𝐼   ,𝑋,𝑦
Allowed substitution hints:   𝜑(𝑦,)   𝐷()   𝑅(𝑦,)   1 (𝑦,)   𝐹(𝑦,)   𝑉(𝑦,)   𝑊()   𝑌(𝑦,)   0 (𝑦,)

Proof of Theorem mvrval2
Dummy variable 𝑓 is distinct from all other variables.
StepHypRef Expression
1 mvrfval.v . . . 4 𝑉 = (𝐼 mVar 𝑅)
2 mvrfval.d . . . 4 𝐷 = { ∈ (ℕ0𝑚 𝐼) ∣ ( “ ℕ) ∈ Fin}
3 mvrfval.z . . . 4 0 = (0g𝑅)
4 mvrfval.o . . . 4 1 = (1r𝑅)
5 mvrfval.i . . . 4 (𝜑𝐼𝑊)
6 mvrfval.r . . . 4 (𝜑𝑅𝑌)
7 mvrval.x . . . 4 (𝜑𝑋𝐼)
81, 2, 3, 4, 5, 6, 7mvrval 19183 . . 3 (𝜑 → (𝑉𝑋) = (𝑓𝐷 ↦ if(𝑓 = (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)), 1 , 0 )))
98fveq1d 6085 . 2 (𝜑 → ((𝑉𝑋)‘𝐹) = ((𝑓𝐷 ↦ if(𝑓 = (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)), 1 , 0 ))‘𝐹))
10 mvrval2.f . . 3 (𝜑𝐹𝐷)
11 eqeq1 2608 . . . . 5 (𝑓 = 𝐹 → (𝑓 = (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)) ↔ 𝐹 = (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0))))
1211ifbid 4052 . . . 4 (𝑓 = 𝐹 → if(𝑓 = (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)), 1 , 0 ) = if(𝐹 = (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)), 1 , 0 ))
13 eqid 2604 . . . 4 (𝑓𝐷 ↦ if(𝑓 = (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)), 1 , 0 )) = (𝑓𝐷 ↦ if(𝑓 = (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)), 1 , 0 ))
14 fvex 6093 . . . . . 6 (1r𝑅) ∈ V
154, 14eqeltri 2678 . . . . 5 1 ∈ V
16 fvex 6093 . . . . . 6 (0g𝑅) ∈ V
173, 16eqeltri 2678 . . . . 5 0 ∈ V
1815, 17ifex 4100 . . . 4 if(𝐹 = (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)), 1 , 0 ) ∈ V
1912, 13, 18fvmpt 6171 . . 3 (𝐹𝐷 → ((𝑓𝐷 ↦ if(𝑓 = (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)), 1 , 0 ))‘𝐹) = if(𝐹 = (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)), 1 , 0 ))
2010, 19syl 17 . 2 (𝜑 → ((𝑓𝐷 ↦ if(𝑓 = (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)), 1 , 0 ))‘𝐹) = if(𝐹 = (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)), 1 , 0 ))
219, 20eqtrd 2638 1 (𝜑 → ((𝑉𝑋)‘𝐹) = if(𝐹 = (𝑦𝐼 ↦ if(𝑦 = 𝑋, 1, 0)), 1 , 0 ))
Colors of variables: wff setvar class
Syntax hints:  wi 4   = wceq 1474  wcel 1975  {crab 2894  Vcvv 3167  ifcif 4030  cmpt 4632  ccnv 5022  cima 5026  cfv 5785  (class class class)co 6522  𝑚 cmap 7716  Fincfn 7813  0cc0 9787  1c1 9788  cn 10862  0cn0 11134  0gc0g 15864  1rcur 18265   mVar cmvr 19114
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1711  ax-4 1726  ax-5 1825  ax-6 1873  ax-7 1920  ax-9 1984  ax-10 2004  ax-11 2019  ax-12 2031  ax-13 2227  ax-ext 2584  ax-rep 4688  ax-sep 4698  ax-nul 4707  ax-pr 4823
This theorem depends on definitions:  df-bi 195  df-or 383  df-an 384  df-3an 1032  df-tru 1477  df-ex 1695  df-nf 1700  df-sb 1866  df-eu 2456  df-mo 2457  df-clab 2591  df-cleq 2597  df-clel 2600  df-nfc 2734  df-ne 2776  df-ral 2895  df-rex 2896  df-reu 2897  df-rab 2899  df-v 3169  df-sbc 3397  df-csb 3494  df-dif 3537  df-un 3539  df-in 3541  df-ss 3548  df-nul 3869  df-if 4031  df-sn 4120  df-pr 4122  df-op 4126  df-uni 4362  df-iun 4446  df-br 4573  df-opab 4633  df-mpt 4634  df-id 4938  df-xp 5029  df-rel 5030  df-cnv 5031  df-co 5032  df-dm 5033  df-rn 5034  df-res 5035  df-ima 5036  df-iota 5749  df-fun 5787  df-fn 5788  df-f 5789  df-f1 5790  df-fo 5791  df-f1o 5792  df-fv 5793  df-ov 6525  df-oprab 6526  df-mpt2 6527  df-mvr 19119
This theorem is referenced by:  mvrid  19185  mvrf1  19187  mvrcl  19211
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