MPE Home Metamath Proof Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >  fsump1i Unicode version

Theorem fsump1i 12232
Description: Optimized version of fsump1 12219 for making sums of a concrete number of terms. (Contributed by Mario Carneiro, 23-Apr-2014.)
Hypotheses
Ref Expression
fsump1i.1  |-  Z  =  ( ZZ>= `  M )
fsump1i.2  |-  N  =  ( K  +  1 )
fsump1i.3  |-  ( k  =  N  ->  A  =  B )
fsump1i.4  |-  ( (
ph  /\  k  e.  Z )  ->  A  e.  CC )
fsump1i.5  |-  ( ph  ->  ( K  e.  Z  /\  sum_ k  e.  ( M ... K ) A  =  S ) )
fsump1i.6  |-  ( ph  ->  ( S  +  B
)  =  T )
Assertion
Ref Expression
fsump1i  |-  ( ph  ->  ( N  e.  Z  /\  sum_ k  e.  ( M ... N ) A  =  T ) )
Distinct variable groups:    B, k    k, K    k, M    k, N    ph, k
Allowed substitution hints:    A( k)    S( k)    T( k)    Z( k)

Proof of Theorem fsump1i
StepHypRef Expression
1 fsump1i.2 . . 3  |-  N  =  ( K  +  1 )
2 fsump1i.5 . . . . . 6  |-  ( ph  ->  ( K  e.  Z  /\  sum_ k  e.  ( M ... K ) A  =  S ) )
32simpld 445 . . . . 5  |-  ( ph  ->  K  e.  Z )
4 fsump1i.1 . . . . 5  |-  Z  =  ( ZZ>= `  M )
53, 4syl6eleq 2373 . . . 4  |-  ( ph  ->  K  e.  ( ZZ>= `  M ) )
6 peano2uz 10272 . . . . 5  |-  ( K  e.  ( ZZ>= `  M
)  ->  ( K  +  1 )  e.  ( ZZ>= `  M )
)
76, 4syl6eleqr 2374 . . . 4  |-  ( K  e.  ( ZZ>= `  M
)  ->  ( K  +  1 )  e.  Z )
85, 7syl 15 . . 3  |-  ( ph  ->  ( K  +  1 )  e.  Z )
91, 8syl5eqel 2367 . 2  |-  ( ph  ->  N  e.  Z )
101oveq2i 5869 . . . . 5  |-  ( M ... N )  =  ( M ... ( K  +  1 ) )
1110sumeq1i 12171 . . . 4  |-  sum_ k  e.  ( M ... N
) A  =  sum_ k  e.  ( M ... ( K  +  1 ) ) A
12 elfzuz 10794 . . . . . . 7  |-  ( k  e.  ( M ... ( K  +  1
) )  ->  k  e.  ( ZZ>= `  M )
)
1312, 4syl6eleqr 2374 . . . . . 6  |-  ( k  e.  ( M ... ( K  +  1
) )  ->  k  e.  Z )
14 fsump1i.4 . . . . . 6  |-  ( (
ph  /\  k  e.  Z )  ->  A  e.  CC )
1513, 14sylan2 460 . . . . 5  |-  ( (
ph  /\  k  e.  ( M ... ( K  +  1 ) ) )  ->  A  e.  CC )
161eqeq2i 2293 . . . . . 6  |-  ( k  =  N  <->  k  =  ( K  +  1
) )
17 fsump1i.3 . . . . . 6  |-  ( k  =  N  ->  A  =  B )
1816, 17sylbir 204 . . . . 5  |-  ( k  =  ( K  + 
1 )  ->  A  =  B )
195, 15, 18fsump1 12219 . . . 4  |-  ( ph  -> 
sum_ k  e.  ( M ... ( K  +  1 ) ) A  =  ( sum_ k  e.  ( M ... K ) A  +  B ) )
2011, 19syl5eq 2327 . . 3  |-  ( ph  -> 
sum_ k  e.  ( M ... N ) A  =  ( sum_ k  e.  ( M ... K ) A  +  B ) )
212simprd 449 . . . 4  |-  ( ph  -> 
sum_ k  e.  ( M ... K ) A  =  S )
2221oveq1d 5873 . . 3  |-  ( ph  ->  ( sum_ k  e.  ( M ... K ) A  +  B )  =  ( S  +  B ) )
23 fsump1i.6 . . 3  |-  ( ph  ->  ( S  +  B
)  =  T )
2420, 22, 233eqtrd 2319 . 2  |-  ( ph  -> 
sum_ k  e.  ( M ... N ) A  =  T )
259, 24jca 518 1  |-  ( ph  ->  ( N  e.  Z  /\  sum_ k  e.  ( M ... N ) A  =  T ) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ wa 358    = wceq 1623    e. wcel 1684   ` cfv 5255  (class class class)co 5858   CCcc 8735   1c1 8738    + caddc 8740   ZZ>=cuz 10230   ...cfz 10782   sum_csu 12158
This theorem is referenced by:  itgcnlem  19144  vieta1  19692  ipval2  21280  subfacval2  23718
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8  ax-gen 1533  ax-5 1544  ax-17 1603  ax-9 1635  ax-8 1643  ax-13 1686  ax-14 1688  ax-6 1703  ax-7 1708  ax-11 1715  ax-12 1866  ax-ext 2264  ax-rep 4131  ax-sep 4141  ax-nul 4149  ax-pow 4188  ax-pr 4214  ax-un 4512  ax-inf2 7342  ax-cnex 8793  ax-resscn 8794  ax-1cn 8795  ax-icn 8796  ax-addcl 8797  ax-addrcl 8798  ax-mulcl 8799  ax-mulrcl 8800  ax-mulcom 8801  ax-addass 8802  ax-mulass 8803  ax-distr 8804  ax-i2m1 8805  ax-1ne0 8806  ax-1rid 8807  ax-rnegex 8808  ax-rrecex 8809  ax-cnre 8810  ax-pre-lttri 8811  ax-pre-lttrn 8812  ax-pre-ltadd 8813  ax-pre-mulgt0 8814  ax-pre-sup 8815
This theorem depends on definitions:  df-bi 177  df-or 359  df-an 360  df-3or 935  df-3an 936  df-tru 1310  df-ex 1529  df-nf 1532  df-sb 1630  df-eu 2147  df-mo 2148  df-clab 2270  df-cleq 2276  df-clel 2279  df-nfc 2408  df-ne 2448  df-nel 2449  df-ral 2548  df-rex 2549  df-reu 2550  df-rmo 2551  df-rab 2552  df-v 2790  df-sbc 2992  df-csb 3082  df-dif 3155  df-un 3157  df-in 3159  df-ss 3166  df-pss 3168  df-nul 3456  df-if 3566  df-pw 3627  df-sn 3646  df-pr 3647  df-tp 3648  df-op 3649  df-uni 3828  df-int 3863  df-iun 3907  df-br 4024  df-opab 4078  df-mpt 4079  df-tr 4114  df-eprel 4305  df-id 4309  df-po 4314  df-so 4315  df-fr 4352  df-se 4353  df-we 4354  df-ord 4395  df-on 4396  df-lim 4397  df-suc 4398  df-om 4657  df-xp 4695  df-rel 4696  df-cnv 4697  df-co 4698  df-dm 4699  df-rn 4700  df-res 4701  df-ima 4702  df-iota 5219  df-fun 5257  df-fn 5258  df-f 5259  df-f1 5260  df-fo 5261  df-f1o 5262  df-fv 5263  df-isom 5264  df-ov 5861  df-oprab 5862  df-mpt2 5863  df-1st 6122  df-2nd 6123  df-riota 6304  df-recs 6388  df-rdg 6423  df-1o 6479  df-oadd 6483  df-er 6660  df-en 6864  df-dom 6865  df-sdom 6866  df-fin 6867  df-sup 7194  df-oi 7225  df-card 7572  df-pnf 8869  df-mnf 8870  df-xr 8871  df-ltxr 8872  df-le 8873  df-sub 9039  df-neg 9040  df-div 9424  df-nn 9747  df-2 9804  df-3 9805  df-n0 9966  df-z 10025  df-uz 10231  df-rp 10355  df-fz 10783  df-fzo 10871  df-seq 11047  df-exp 11105  df-hash 11338  df-cj 11584  df-re 11585  df-im 11586  df-sqr 11720  df-abs 11721  df-clim 11962  df-sum 12159
  Copyright terms: Public domain W3C validator