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Theorem flapge 10731
Description: The floor function value is the greatest integer less than or equal to its argument. (Contributed by Jim Kingdon, 8-Oct-2021.)
Assertion
Ref Expression
flapge  |-  ( ( ( A  e.  QQ  \/  ( A  e.  RR  /\ 
A. q  e.  QQ  A #  q ) )  /\  B  e.  ZZ )  ->  ( B  <_  A  <->  B  <_  ( |_ `  A ) ) )
Distinct variable group:    A, q
Allowed substitution hint:    B( q)

Proof of Theorem flapge
StepHypRef Expression
1 flaplelt 10724 . . . . . 6  |-  ( ( A  e.  QQ  \/  ( A  e.  RR  /\ 
A. q  e.  QQ  A #  q ) )  -> 
( ( |_ `  A )  <_  A  /\  A  <  ( ( |_ `  A )  +  1 ) ) )
21simprd 114 . . . . 5  |-  ( ( A  e.  QQ  \/  ( A  e.  RR  /\ 
A. q  e.  QQ  A #  q ) )  ->  A  <  ( ( |_
`  A )  +  1 ) )
32adantr 276 . . . 4  |-  ( ( ( A  e.  QQ  \/  ( A  e.  RR  /\ 
A. q  e.  QQ  A #  q ) )  /\  B  e.  ZZ )  ->  A  <  ( ( |_ `  A )  +  1 ) )
4 simpr 110 . . . . . 6  |-  ( ( ( A  e.  QQ  \/  ( A  e.  RR  /\ 
A. q  e.  QQ  A #  q ) )  /\  B  e.  ZZ )  ->  B  e.  ZZ )
54zred 9773 . . . . 5  |-  ( ( ( A  e.  QQ  \/  ( A  e.  RR  /\ 
A. q  e.  QQ  A #  q ) )  /\  B  e.  ZZ )  ->  B  e.  RR )
6 qre 10035 . . . . . . 7  |-  ( A  e.  QQ  ->  A  e.  RR )
7 simpl 109 . . . . . . 7  |-  ( ( A  e.  RR  /\  A. q  e.  QQ  A #  q )  ->  A  e.  RR )
86, 7jaoi 728 . . . . . 6  |-  ( ( A  e.  QQ  \/  ( A  e.  RR  /\ 
A. q  e.  QQ  A #  q ) )  ->  A  e.  RR )
98adantr 276 . . . . 5  |-  ( ( ( A  e.  QQ  \/  ( A  e.  RR  /\ 
A. q  e.  QQ  A #  q ) )  /\  B  e.  ZZ )  ->  A  e.  RR )
10 flapcl 10722 . . . . . . . 8  |-  ( ( A  e.  QQ  \/  ( A  e.  RR  /\ 
A. q  e.  QQ  A #  q ) )  -> 
( |_ `  A
)  e.  ZZ )
1110adantr 276 . . . . . . 7  |-  ( ( ( A  e.  QQ  \/  ( A  e.  RR  /\ 
A. q  e.  QQ  A #  q ) )  /\  B  e.  ZZ )  ->  ( |_ `  A
)  e.  ZZ )
1211peano2zd 9776 . . . . . 6  |-  ( ( ( A  e.  QQ  \/  ( A  e.  RR  /\ 
A. q  e.  QQ  A #  q ) )  /\  B  e.  ZZ )  ->  ( ( |_ `  A )  +  1 )  e.  ZZ )
1312zred 9773 . . . . 5  |-  ( ( ( A  e.  QQ  \/  ( A  e.  RR  /\ 
A. q  e.  QQ  A #  q ) )  /\  B  e.  ZZ )  ->  ( ( |_ `  A )  +  1 )  e.  RR )
14 lelttr 8415 . . . . 5  |-  ( ( B  e.  RR  /\  A  e.  RR  /\  (
( |_ `  A
)  +  1 )  e.  RR )  -> 
( ( B  <_  A  /\  A  <  (
( |_ `  A
)  +  1 ) )  ->  B  <  ( ( |_ `  A
)  +  1 ) ) )
155, 9, 13, 14syl3anc 1278 . . . 4  |-  ( ( ( A  e.  QQ  \/  ( A  e.  RR  /\ 
A. q  e.  QQ  A #  q ) )  /\  B  e.  ZZ )  ->  ( ( B  <_  A  /\  A  <  (
( |_ `  A
)  +  1 ) )  ->  B  <  ( ( |_ `  A
)  +  1 ) ) )
163, 15mpan2d 432 . . 3  |-  ( ( ( A  e.  QQ  \/  ( A  e.  RR  /\ 
A. q  e.  QQ  A #  q ) )  /\  B  e.  ZZ )  ->  ( B  <_  A  ->  B  <  ( ( |_ `  A )  +  1 ) ) )
17 zleltp1 9705 . . . 4  |-  ( ( B  e.  ZZ  /\  ( |_ `  A )  e.  ZZ )  -> 
( B  <_  ( |_ `  A )  <->  B  <  ( ( |_ `  A
)  +  1 ) ) )
184, 11, 17syl2anc 415 . . 3  |-  ( ( ( A  e.  QQ  \/  ( A  e.  RR  /\ 
A. q  e.  QQ  A #  q ) )  /\  B  e.  ZZ )  ->  ( B  <_  ( |_ `  A )  <->  B  <  ( ( |_ `  A
)  +  1 ) ) )
1916, 18sylibrd 169 . 2  |-  ( ( ( A  e.  QQ  \/  ( A  e.  RR  /\ 
A. q  e.  QQ  A #  q ) )  /\  B  e.  ZZ )  ->  ( B  <_  A  ->  B  <_  ( |_ `  A ) ) )
201simpld 112 . . . 4  |-  ( ( A  e.  QQ  \/  ( A  e.  RR  /\ 
A. q  e.  QQ  A #  q ) )  -> 
( |_ `  A
)  <_  A )
2120adantr 276 . . 3  |-  ( ( ( A  e.  QQ  \/  ( A  e.  RR  /\ 
A. q  e.  QQ  A #  q ) )  /\  B  e.  ZZ )  ->  ( |_ `  A
)  <_  A )
2211zred 9773 . . . 4  |-  ( ( ( A  e.  QQ  \/  ( A  e.  RR  /\ 
A. q  e.  QQ  A #  q ) )  /\  B  e.  ZZ )  ->  ( |_ `  A
)  e.  RR )
23 letr 8409 . . . 4  |-  ( ( B  e.  RR  /\  ( |_ `  A )  e.  RR  /\  A  e.  RR )  ->  (
( B  <_  ( |_ `  A )  /\  ( |_ `  A )  <_  A )  ->  B  <_  A ) )
245, 22, 9, 23syl3anc 1278 . . 3  |-  ( ( ( A  e.  QQ  \/  ( A  e.  RR  /\ 
A. q  e.  QQ  A #  q ) )  /\  B  e.  ZZ )  ->  ( ( B  <_ 
( |_ `  A
)  /\  ( |_ `  A )  <_  A
)  ->  B  <_  A ) )
2521, 24mpan2d 432 . 2  |-  ( ( ( A  e.  QQ  \/  ( A  e.  RR  /\ 
A. q  e.  QQ  A #  q ) )  /\  B  e.  ZZ )  ->  ( B  <_  ( |_ `  A )  ->  B  <_  A ) )
2619, 25impbid 129 1  |-  ( ( ( A  e.  QQ  \/  ( A  e.  RR  /\ 
A. q  e.  QQ  A #  q ) )  /\  B  e.  ZZ )  ->  ( B  <_  A  <->  B  <_  ( |_ `  A ) ) )
Colors of variables:    wff set class
This proof depends on syntax axioms:    -> wi 4    /\ wa 104    <-> wb 105    \/ wo 720    e. wcel 2209   A.wral 2528   class class class wbr 4130   ` cfv 5377  (class class class)co 6085   RRcr 8179   1c1 8181    + caddc 8183    < clt 8361    <_ cle 8362   # cap 8912   ZZcz 9649   QQcq 10029   |_cfl 10714
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 623  ax-in2 624  ax-io 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-14 2212  ax-ext 2220  ax-sep 4249  ax-pow 4311  ax-pr 4346  ax-un 4578  ax-setind 4684  ax-cnex 8271  ax-resscn 8272  ax-1cn 8273  ax-1re 8274  ax-icn 8275  ax-addcl 8276  ax-addrcl 8277  ax-mulcl 8278  ax-mulrcl 8279  ax-addcom 8280  ax-mulcom 8281  ax-addass 8282  ax-mulass 8283  ax-distr 8284  ax-i2m1 8285  ax-0lt1 8286  ax-1rid 8287  ax-0id 8288  ax-rnegex 8289  ax-precex 8290  ax-cnre 8291  ax-pre-ltirr 8292  ax-pre-ltwlin 8293  ax-pre-lttrn 8294  ax-pre-apti 8295  ax-pre-ltadd 8296  ax-pre-mulgt0 8297  ax-pre-mulext 8298  ax-arch 8299
This proof depends on definitions:  df-bi 117  df-3or 1010  df-3an 1011  df-tru 1405  df-fal 1408  df-nf 1514  df-sb 1816  df-eu 2089  df-mo 2090  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ne 2421  df-nel 2516  df-ral 2533  df-rex 2534  df-reu 2535  df-rmo 2536  df-rab 2537  df-v 2823  df-sbc 3052  df-csb 3148  df-dif 3222  df-un 3224  df-in 3226  df-ss 3233  df-pw 3690  df-sn 3715  df-pr 3716  df-op 3718  df-uni 3936  df-int 3971  df-iun 4014  df-br 4131  df-opab 4193  df-mpt 4194  df-id 4438  df-po 4441  df-iso 4442  df-xp 4780  df-rel 4781  df-cnv 4782  df-co 4783  df-dm 4784  df-rn 4785  df-res 4786  df-ima 4787  df-iota 5337  df-fun 5379  df-fn 5380  df-f 5381  df-fv 5385  df-riota 6038  df-ov 6088  df-oprab 6089  df-mpo 6090  df-1st 6374  df-2nd 6375  df-pnf 8363  df-mnf 8364  df-xr 8365  df-ltxr 8366  df-le 8367  df-sub 8501  df-neg 8502  df-reap 8906  df-ap 8913  df-div 9006  df-inn 9308  df-n0 9569  df-z 9650  df-q 10030  df-rp 10066  df-fl 10716
This theorem is used by:  prmefexple  16269  bposlem1  16272  bposlem4  16275  bposlem5  16276
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