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Theorem recvguniqlem 11005
Description: Lemma for recvguniq 11006. Some of the rearrangements of the expressions. (Contributed by Jim Kingdon, 8-Aug-2021.)
Hypotheses
Ref Expression
recvguniqlem.f  |-  ( ph  ->  F : NN --> RR )
recvguniqlem.a  |-  ( ph  ->  A  e.  RR )
recvguniqlem.b  |-  ( ph  ->  B  e.  RR )
recvguniqlem.k  |-  ( ph  ->  K  e.  NN )
recvguniqlem.lt1  |-  ( ph  ->  A  <  ( ( F `  K )  +  ( ( A  -  B )  / 
2 ) ) )
recvguniqlem.lt2  |-  ( ph  ->  ( F `  K
)  <  ( B  +  ( ( A  -  B )  / 
2 ) ) )
Assertion
Ref Expression
recvguniqlem  |-  ( ph  -> F.  )

Proof of Theorem recvguniqlem
StepHypRef Expression
1 recvguniqlem.a . . 3  |-  ( ph  ->  A  e.  RR )
2 recvguniqlem.f . . . . 5  |-  ( ph  ->  F : NN --> RR )
3 recvguniqlem.k . . . . 5  |-  ( ph  ->  K  e.  NN )
42, 3ffvelcdmd 5654 . . . 4  |-  ( ph  ->  ( F `  K
)  e.  RR )
5 recvguniqlem.b . . . . . 6  |-  ( ph  ->  B  e.  RR )
61, 5resubcld 8340 . . . . 5  |-  ( ph  ->  ( A  -  B
)  e.  RR )
76rehalfcld 9167 . . . 4  |-  ( ph  ->  ( ( A  -  B )  /  2
)  e.  RR )
84, 7readdcld 7989 . . 3  |-  ( ph  ->  ( ( F `  K )  +  ( ( A  -  B
)  /  2 ) )  e.  RR )
9 recvguniqlem.lt1 . . 3  |-  ( ph  ->  A  <  ( ( F `  K )  +  ( ( A  -  B )  / 
2 ) ) )
105, 7readdcld 7989 . . . . 5  |-  ( ph  ->  ( B  +  ( ( A  -  B
)  /  2 ) )  e.  RR )
11 recvguniqlem.lt2 . . . . 5  |-  ( ph  ->  ( F `  K
)  <  ( B  +  ( ( A  -  B )  / 
2 ) ) )
124, 10, 7, 11ltadd1dd 8515 . . . 4  |-  ( ph  ->  ( ( F `  K )  +  ( ( A  -  B
)  /  2 ) )  <  ( ( B  +  ( ( A  -  B )  /  2 ) )  +  ( ( A  -  B )  / 
2 ) ) )
135recnd 7988 . . . . . 6  |-  ( ph  ->  B  e.  CC )
147recnd 7988 . . . . . 6  |-  ( ph  ->  ( ( A  -  B )  /  2
)  e.  CC )
1513, 14, 14addassd 7982 . . . . 5  |-  ( ph  ->  ( ( B  +  ( ( A  -  B )  /  2
) )  +  ( ( A  -  B
)  /  2 ) )  =  ( B  +  ( ( ( A  -  B )  /  2 )  +  ( ( A  -  B )  /  2
) ) ) )
166recnd 7988 . . . . . . 7  |-  ( ph  ->  ( A  -  B
)  e.  CC )
17162halvesd 9166 . . . . . 6  |-  ( ph  ->  ( ( ( A  -  B )  / 
2 )  +  ( ( A  -  B
)  /  2 ) )  =  ( A  -  B ) )
1817oveq2d 5893 . . . . 5  |-  ( ph  ->  ( B  +  ( ( ( A  -  B )  /  2
)  +  ( ( A  -  B )  /  2 ) ) )  =  ( B  +  ( A  -  B ) ) )
191recnd 7988 . . . . . 6  |-  ( ph  ->  A  e.  CC )
2013, 19pncan3d 8273 . . . . 5  |-  ( ph  ->  ( B  +  ( A  -  B ) )  =  A )
2115, 18, 203eqtrd 2214 . . . 4  |-  ( ph  ->  ( ( B  +  ( ( A  -  B )  /  2
) )  +  ( ( A  -  B
)  /  2 ) )  =  A )
2212, 21breqtrd 4031 . . 3  |-  ( ph  ->  ( ( F `  K )  +  ( ( A  -  B
)  /  2 ) )  <  A )
231, 8, 1, 9, 22lttrd 8085 . 2  |-  ( ph  ->  A  <  A )
241ltnrd 8071 . 2  |-  ( ph  ->  -.  A  <  A
)
2523, 24pm2.21fal 1373 1  |-  ( ph  -> F.  )
Colors of variables: wff set class
Syntax hints:    -> wi 4   F. wfal 1358    e. wcel 2148   class class class wbr 4005   -->wf 5214   ` cfv 5218  (class class class)co 5877   RRcr 7812    + caddc 7816    < clt 7994    - cmin 8130    / cdiv 8631   NNcn 8921   2c2 8972
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 614  ax-in2 615  ax-io 709  ax-5 1447  ax-7 1448  ax-gen 1449  ax-ie1 1493  ax-ie2 1494  ax-8 1504  ax-10 1505  ax-11 1506  ax-i12 1507  ax-bndl 1509  ax-4 1510  ax-17 1526  ax-i9 1530  ax-ial 1534  ax-i5r 1535  ax-13 2150  ax-14 2151  ax-ext 2159  ax-sep 4123  ax-pow 4176  ax-pr 4211  ax-un 4435  ax-setind 4538  ax-cnex 7904  ax-resscn 7905  ax-1cn 7906  ax-1re 7907  ax-icn 7908  ax-addcl 7909  ax-addrcl 7910  ax-mulcl 7911  ax-mulrcl 7912  ax-addcom 7913  ax-mulcom 7914  ax-addass 7915  ax-mulass 7916  ax-distr 7917  ax-i2m1 7918  ax-0lt1 7919  ax-1rid 7920  ax-0id 7921  ax-rnegex 7922  ax-precex 7923  ax-cnre 7924  ax-pre-ltirr 7925  ax-pre-ltwlin 7926  ax-pre-lttrn 7927  ax-pre-apti 7928  ax-pre-ltadd 7929  ax-pre-mulgt0 7930  ax-pre-mulext 7931
This theorem depends on definitions:  df-bi 117  df-3an 980  df-tru 1356  df-fal 1359  df-nf 1461  df-sb 1763  df-eu 2029  df-mo 2030  df-clab 2164  df-cleq 2170  df-clel 2173  df-nfc 2308  df-ne 2348  df-nel 2443  df-ral 2460  df-rex 2461  df-reu 2462  df-rmo 2463  df-rab 2464  df-v 2741  df-sbc 2965  df-dif 3133  df-un 3135  df-in 3137  df-ss 3144  df-pw 3579  df-sn 3600  df-pr 3601  df-op 3603  df-uni 3812  df-br 4006  df-opab 4067  df-id 4295  df-po 4298  df-iso 4299  df-xp 4634  df-rel 4635  df-cnv 4636  df-co 4637  df-dm 4638  df-rn 4639  df-iota 5180  df-fun 5220  df-fn 5221  df-f 5222  df-fv 5226  df-riota 5833  df-ov 5880  df-oprab 5881  df-mpo 5882  df-pnf 7996  df-mnf 7997  df-xr 7998  df-ltxr 7999  df-le 8000  df-sub 8132  df-neg 8133  df-reap 8534  df-ap 8541  df-div 8632  df-2 8980
This theorem is referenced by:  recvguniq  11006
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