Mathbox for Glauco Siliprandi < Previous   Next > Nearby theorems Mirrors  >  Home  >  MPE Home  >  Th. List  >   Mathboxes  >  etransclem11 Structured version   Visualization version   GIF version

Theorem etransclem11 43275
 Description: A change of bound variable, often used in proofs for etransc 43313. (Contributed by Glauco Siliprandi, 5-Apr-2020.)
Assertion
Ref Expression
etransclem11 (𝑛 ∈ ℕ0 ↦ {𝑐 ∈ ((0...𝑛) ↑m (0...𝑀)) ∣ Σ𝑗 ∈ (0...𝑀)(𝑐𝑗) = 𝑛}) = (𝑚 ∈ ℕ0 ↦ {𝑑 ∈ ((0...𝑚) ↑m (0...𝑀)) ∣ Σ𝑘 ∈ (0...𝑀)(𝑑𝑘) = 𝑚})
Distinct variable groups:   𝑀,𝑐,𝑑,𝑗,𝑘   𝑚,𝑀,𝑐,𝑑,𝑗   𝑛,𝑀,𝑐,𝑑,𝑘   𝑚,𝑛

Proof of Theorem etransclem11
StepHypRef Expression
1 oveq2 7158 . . . . 5 (𝑛 = 𝑚 → (0...𝑛) = (0...𝑚))
21oveq1d 7165 . . . 4 (𝑛 = 𝑚 → ((0...𝑛) ↑m (0...𝑀)) = ((0...𝑚) ↑m (0...𝑀)))
32rabeqdv 3397 . . 3 (𝑛 = 𝑚 → {𝑐 ∈ ((0...𝑛) ↑m (0...𝑀)) ∣ Σ𝑗 ∈ (0...𝑀)(𝑐𝑗) = 𝑛} = {𝑐 ∈ ((0...𝑚) ↑m (0...𝑀)) ∣ Σ𝑗 ∈ (0...𝑀)(𝑐𝑗) = 𝑛})
4 fveq2 6658 . . . . . . . 8 (𝑗 = 𝑘 → (𝑐𝑗) = (𝑐𝑘))
54cbvsumv 15101 . . . . . . 7 Σ𝑗 ∈ (0...𝑀)(𝑐𝑗) = Σ𝑘 ∈ (0...𝑀)(𝑐𝑘)
6 fveq1 6657 . . . . . . . 8 (𝑐 = 𝑑 → (𝑐𝑘) = (𝑑𝑘))
76sumeq2sdv 15109 . . . . . . 7 (𝑐 = 𝑑 → Σ𝑘 ∈ (0...𝑀)(𝑐𝑘) = Σ𝑘 ∈ (0...𝑀)(𝑑𝑘))
85, 7syl5eq 2805 . . . . . 6 (𝑐 = 𝑑 → Σ𝑗 ∈ (0...𝑀)(𝑐𝑗) = Σ𝑘 ∈ (0...𝑀)(𝑑𝑘))
98eqeq1d 2760 . . . . 5 (𝑐 = 𝑑 → (Σ𝑗 ∈ (0...𝑀)(𝑐𝑗) = 𝑛 ↔ Σ𝑘 ∈ (0...𝑀)(𝑑𝑘) = 𝑛))
109cbvrabv 3404 . . . 4 {𝑐 ∈ ((0...𝑚) ↑m (0...𝑀)) ∣ Σ𝑗 ∈ (0...𝑀)(𝑐𝑗) = 𝑛} = {𝑑 ∈ ((0...𝑚) ↑m (0...𝑀)) ∣ Σ𝑘 ∈ (0...𝑀)(𝑑𝑘) = 𝑛}
11 eqeq2 2770 . . . . 5 (𝑛 = 𝑚 → (Σ𝑘 ∈ (0...𝑀)(𝑑𝑘) = 𝑛 ↔ Σ𝑘 ∈ (0...𝑀)(𝑑𝑘) = 𝑚))
1211rabbidv 3392 . . . 4 (𝑛 = 𝑚 → {𝑑 ∈ ((0...𝑚) ↑m (0...𝑀)) ∣ Σ𝑘 ∈ (0...𝑀)(𝑑𝑘) = 𝑛} = {𝑑 ∈ ((0...𝑚) ↑m (0...𝑀)) ∣ Σ𝑘 ∈ (0...𝑀)(𝑑𝑘) = 𝑚})
1310, 12syl5eq 2805 . . 3 (𝑛 = 𝑚 → {𝑐 ∈ ((0...𝑚) ↑m (0...𝑀)) ∣ Σ𝑗 ∈ (0...𝑀)(𝑐𝑗) = 𝑛} = {𝑑 ∈ ((0...𝑚) ↑m (0...𝑀)) ∣ Σ𝑘 ∈ (0...𝑀)(𝑑𝑘) = 𝑚})
143, 13eqtrd 2793 . 2 (𝑛 = 𝑚 → {𝑐 ∈ ((0...𝑛) ↑m (0...𝑀)) ∣ Σ𝑗 ∈ (0...𝑀)(𝑐𝑗) = 𝑛} = {𝑑 ∈ ((0...𝑚) ↑m (0...𝑀)) ∣ Σ𝑘 ∈ (0...𝑀)(𝑑𝑘) = 𝑚})
1514cbvmptv 5135 1 (𝑛 ∈ ℕ0 ↦ {𝑐 ∈ ((0...𝑛) ↑m (0...𝑀)) ∣ Σ𝑗 ∈ (0...𝑀)(𝑐𝑗) = 𝑛}) = (𝑚 ∈ ℕ0 ↦ {𝑑 ∈ ((0...𝑚) ↑m (0...𝑀)) ∣ Σ𝑘 ∈ (0...𝑀)(𝑑𝑘) = 𝑚})
 Colors of variables: wff setvar class Syntax hints:   = wceq 1538  {crab 3074   ↦ cmpt 5112  ‘cfv 6335  (class class class)co 7150   ↑m cmap 8416  0cc0 10575  ℕ0cn0 11934  ...cfz 12939  Σcsu 15090 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 2113  ax-9 2121  ax-10 2142  ax-11 2158  ax-12 2175  ax-ext 2729  ax-sep 5169  ax-nul 5176  ax-pow 5234  ax-pr 5298  ax-un 7459  ax-cnex 10631  ax-resscn 10632  ax-1cn 10633  ax-icn 10634  ax-addcl 10635  ax-addrcl 10636  ax-mulcl 10637  ax-mulrcl 10638  ax-mulcom 10639  ax-addass 10640  ax-mulass 10641  ax-distr 10642  ax-i2m1 10643  ax-1ne0 10644  ax-1rid 10645  ax-rnegex 10646  ax-rrecex 10647  ax-cnre 10648  ax-pre-lttri 10649  ax-pre-lttrn 10650  ax-pre-ltadd 10651  ax-pre-mulgt0 10652 This theorem depends on definitions:  df-bi 210  df-an 400  df-or 845  df-3or 1085  df-3an 1086  df-tru 1541  df-fal 1551  df-ex 1782  df-nf 1786  df-sb 2070  df-mo 2557  df-eu 2588  df-clab 2736  df-cleq 2750  df-clel 2830  df-nfc 2901  df-ne 2952  df-nel 3056  df-ral 3075  df-rex 3076  df-reu 3077  df-rab 3079  df-v 3411  df-sbc 3697  df-csb 3806  df-dif 3861  df-un 3863  df-in 3865  df-ss 3875  df-pss 3877  df-nul 4226  df-if 4421  df-pw 4496  df-sn 4523  df-pr 4525  df-tp 4527  df-op 4529  df-uni 4799  df-iun 4885  df-br 5033  df-opab 5095  df-mpt 5113  df-tr 5139  df-id 5430  df-eprel 5435  df-po 5443  df-so 5444  df-fr 5483  df-we 5485  df-xp 5530  df-rel 5531  df-cnv 5532  df-co 5533  df-dm 5534  df-rn 5535  df-res 5536  df-ima 5537  df-pred 6126  df-ord 6172  df-on 6173  df-lim 6174  df-suc 6175  df-iota 6294  df-fun 6337  df-fn 6338  df-f 6339  df-f1 6340  df-fo 6341  df-f1o 6342  df-fv 6343  df-riota 7108  df-ov 7153  df-oprab 7154  df-mpo 7155  df-om 7580  df-1st 7693  df-2nd 7694  df-wrecs 7957  df-recs 8018  df-rdg 8056  df-er 8299  df-en 8528  df-dom 8529  df-sdom 8530  df-pnf 10715  df-mnf 10716  df-xr 10717  df-ltxr 10718  df-le 10719  df-sub 10910  df-neg 10911  df-nn 11675  df-n0 11935  df-z 12021  df-uz 12283  df-fz 12940  df-seq 13419  df-sum 15091 This theorem is referenced by:  etransclem32  43296  etransclem33  43297  etransclem36  43300  etransclem37  43301  etransclem38  43302  etransclem40  43304  etransclem41  43305  etransclem42  43306  etransclem44  43308  etransclem45  43309
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