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Theorem limsupvaluzmpt 46318
Description: The superior limit, when the domain of the function is a set of upper integers (the first condition is needed, otherwise the l.h.s. would be -∞ and the r.h.s. would be +∞). (Contributed by Glauco Siliprandi, 23-Oct-2021.)
Hypotheses
Ref Expression
limsupvaluzmpt.j 𝑗𝜑
limsupvaluzmpt.m (𝜑𝑀 ∈ ℤ)
limsupvaluzmpt.z 𝑍 = (ℤ𝑀)
limsupvaluzmpt.b ((𝜑𝑗𝑍) → 𝐵 ∈ ℝ*)
Assertion
Ref Expression
limsupvaluzmpt (𝜑 → (lim sup‘(𝑗𝑍𝐵)) = inf(ran (𝑘𝑍 ↦ sup(ran (𝑗 ∈ (ℤ𝑘) ↦ 𝐵), ℝ*, < )), ℝ*, < ))
Distinct variable groups:   𝐵,𝑘   𝑗,𝑍,𝑘
Allowed substitution hints:   𝜑(𝑗,𝑘)   𝐵(𝑗)   𝑀(𝑗,𝑘)

Proof of Theorem limsupvaluzmpt
StepHypRef Expression
1 limsupvaluzmpt.m . . 3 (𝜑𝑀 ∈ ℤ)
2 limsupvaluzmpt.z . . 3 𝑍 = (ℤ𝑀)
3 limsupvaluzmpt.j . . . 4 𝑗𝜑
4 limsupvaluzmpt.b . . . 4 ((𝜑𝑗𝑍) → 𝐵 ∈ ℝ*)
53, 4fmptd2f 45837 . . 3 (𝜑 → (𝑗𝑍𝐵):𝑍⟶ℝ*)
61, 2, 5limsupvaluz 46309 . 2 (𝜑 → (lim sup‘(𝑗𝑍𝐵)) = inf(ran (𝑘𝑍 ↦ sup(ran ((𝑗𝑍𝐵) ↾ (ℤ𝑘)), ℝ*, < )), ℝ*, < ))
72uzssd3 46027 . . . . . . . . 9 (𝑘𝑍 → (ℤ𝑘) ⊆ 𝑍)
87resmptd 6040 . . . . . . . 8 (𝑘𝑍 → ((𝑗𝑍𝐵) ↾ (ℤ𝑘)) = (𝑗 ∈ (ℤ𝑘) ↦ 𝐵))
98rneqd 5926 . . . . . . 7 (𝑘𝑍 → ran ((𝑗𝑍𝐵) ↾ (ℤ𝑘)) = ran (𝑗 ∈ (ℤ𝑘) ↦ 𝐵))
109supeq1d 9402 . . . . . 6 (𝑘𝑍 → sup(ran ((𝑗𝑍𝐵) ↾ (ℤ𝑘)), ℝ*, < ) = sup(ran (𝑗 ∈ (ℤ𝑘) ↦ 𝐵), ℝ*, < ))
1110mpteq2ia 5207 . . . . 5 (𝑘𝑍 ↦ sup(ran ((𝑗𝑍𝐵) ↾ (ℤ𝑘)), ℝ*, < )) = (𝑘𝑍 ↦ sup(ran (𝑗 ∈ (ℤ𝑘) ↦ 𝐵), ℝ*, < ))
1211a1i 11 . . . 4 (𝜑 → (𝑘𝑍 ↦ sup(ran ((𝑗𝑍𝐵) ↾ (ℤ𝑘)), ℝ*, < )) = (𝑘𝑍 ↦ sup(ran (𝑗 ∈ (ℤ𝑘) ↦ 𝐵), ℝ*, < )))
1312rneqd 5926 . . 3 (𝜑 → ran (𝑘𝑍 ↦ sup(ran ((𝑗𝑍𝐵) ↾ (ℤ𝑘)), ℝ*, < )) = ran (𝑘𝑍 ↦ sup(ran (𝑗 ∈ (ℤ𝑘) ↦ 𝐵), ℝ*, < )))
1413infeq1d 9434 . 2 (𝜑 → inf(ran (𝑘𝑍 ↦ sup(ran ((𝑗𝑍𝐵) ↾ (ℤ𝑘)), ℝ*, < )), ℝ*, < ) = inf(ran (𝑘𝑍 ↦ sup(ran (𝑗 ∈ (ℤ𝑘) ↦ 𝐵), ℝ*, < )), ℝ*, < ))
156, 14eqtrd 2804 1 (𝜑 → (lim sup‘(𝑗𝑍𝐵)) = inf(ran (𝑘𝑍 ↦ sup(ran (𝑗 ∈ (ℤ𝑘) ↦ 𝐵), ℝ*, < )), ℝ*, < ))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 400   = wceq 1567  wnf 1810  wcel 2149  cmpt 5193  ran crn 5660  cres 5661  cfv 6534  supcsup 9396  infcinf 9397  *cxr 11238   < clt 11239  cz 12587  cuz 12858  lim supclsp 15517
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1822  ax-4 1836  ax-5 1937  ax-6 1994  ax-7 2035  ax-8 2151  ax-9 2159  ax-10 2182  ax-11 2198  ax-12 2219  ax-ext 2741  ax-rep 5239  ax-sep 5258  ax-nul 5268  ax-pow 5334  ax-pr 5402  ax-un 7730  ax-cnex 11152  ax-resscn 11153  ax-1cn 11154  ax-icn 11155  ax-addcl 11156  ax-addrcl 11157  ax-mulcl 11158  ax-mulrcl 11159  ax-mulcom 11160  ax-addass 11161  ax-mulass 11162  ax-distr 11163  ax-i2m1 11164  ax-1ne0 11165  ax-1rid 11166  ax-rnegex 11167  ax-rrecex 11168  ax-cnre 11169  ax-pre-lttri 11170  ax-pre-lttrn 11171  ax-pre-ltadd 11172  ax-pre-mulgt0 11173  ax-pre-sup 11174
This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3or 1102  df-3an 1103  df-tru 1570  df-fal 1580  df-ex 1807  df-nf 1811  df-sb 2098  df-mo 2573  df-eu 2603  df-clab 2748  df-cleq 2761  df-clel 2844  df-nfc 2918  df-ne 2965  df-nel 3071  df-ral 3086  df-rex 3096  df-rmo 3376  df-reu 3377  df-rab 3424  df-v 3465  df-sbc 3754  df-csb 3862  df-dif 3916  df-un 3918  df-in 3920  df-ss 3930  df-pss 3933  df-nul 4295  df-if 4490  df-pw 4566  df-sn 4592  df-pr 4594  df-op 4598  df-uni 4874  df-iun 4959  df-br 5111  df-opab 5175  df-mpt 5194  df-tr 5220  df-id 5554  df-eprel 5559  df-po 5567  df-so 5568  df-fr 5612  df-we 5614  df-xp 5665  df-rel 5666  df-cnv 5667  df-co 5668  df-dm 5669  df-rn 5670  df-res 5671  df-ima 5672  df-pred 6300  df-ord 6361  df-on 6362  df-lim 6363  df-suc 6364  df-iota 6490  df-fun 6536  df-fn 6537  df-f 6538  df-f1 6539  df-fo 6540  df-f1o 6541  df-fv 6542  df-riota 7365  df-ov 7411  df-oprab 7412  df-mpo 7413  df-om 7859  df-1st 7982  df-2nd 7983  df-frecs 8274  df-wrecs 8305  df-recs 8354  df-rdg 8393  df-er 8690  df-en 8940  df-dom 8941  df-sdom 8942  df-sup 9398  df-inf 9399  df-pnf 11241  df-mnf 11242  df-xr 11243  df-ltxr 11244  df-le 11245  df-sub 11439  df-neg 11440  df-nn 12230  df-n0 12501  df-z 12588  df-uz 12859  df-ico 13374  df-fl 13821  df-limsup 15518
This theorem is referenced by:  smflimsuplem4  47424
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