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Theorem gtneii 8253
Description: 'Less than' implies not equal. See also gtapii 8792 which is the same for apartness. (Contributed by Mario Carneiro, 30-Sep-2013.)
Hypotheses
Ref Expression
lt.1  |-  A  e.  RR
ltneii.2  |-  A  < 
B
Assertion
Ref Expression
gtneii  |-  B  =/= 
A

Proof of Theorem gtneii
StepHypRef Expression
1 lt.1 . 2  |-  A  e.  RR
2 ltneii.2 . 2  |-  A  < 
B
3 ltne 8242 . 2  |-  ( ( A  e.  RR  /\  A  <  B )  ->  B  =/=  A )
41, 2, 3mp2an 426 1  |-  B  =/= 
A
Colors of variables: wff set class
Syntax hints:    e. wcel 2200    =/= wne 2400   class class class wbr 4083   RRcr 8009    < clt 8192
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 617  ax-in2 618  ax-io 714  ax-5 1493  ax-7 1494  ax-gen 1495  ax-ie1 1539  ax-ie2 1540  ax-8 1550  ax-10 1551  ax-11 1552  ax-i12 1553  ax-bndl 1555  ax-4 1556  ax-17 1572  ax-i9 1576  ax-ial 1580  ax-i5r 1581  ax-13 2202  ax-14 2203  ax-ext 2211  ax-sep 4202  ax-pow 4258  ax-pr 4293  ax-un 4524  ax-setind 4629  ax-cnex 8101  ax-resscn 8102  ax-pre-ltirr 8122
This theorem depends on definitions:  df-bi 117  df-3an 1004  df-tru 1398  df-fal 1401  df-nf 1507  df-sb 1809  df-eu 2080  df-mo 2081  df-clab 2216  df-cleq 2222  df-clel 2225  df-nfc 2361  df-ne 2401  df-nel 2496  df-ral 2513  df-rex 2514  df-rab 2517  df-v 2801  df-dif 3199  df-un 3201  df-in 3203  df-ss 3210  df-pw 3651  df-sn 3672  df-pr 3673  df-op 3675  df-uni 3889  df-br 4084  df-opab 4146  df-xp 4725  df-pnf 8194  df-mnf 8195  df-ltxr 8197
This theorem is referenced by:  ltneii  8254  ine0  8551  fztpval  10291  ene1  12312  3lcm2e6  12698  starvndxnbasendx  13191  starvndxnplusgndx  13192  starvndxnmulrndx  13193  scandxnbasendx  13203  scandxnplusgndx  13204  scandxnmulrndx  13205  vscandxnbasendx  13208  vscandxnplusgndx  13209  vscandxnmulrndx  13210  vscandxnscandx  13211  ipndxnbasendx  13221  ipndxnplusgndx  13222  ipndxnmulrndx  13223  tsetndxnbasendx  13240  tsetndxnplusgndx  13241  tsetndxnmulrndx  13242  tsetndxnstarvndx  13243  slotstnscsi  13244  plendxnbasendx  13254  plendxnplusgndx  13255  plendxnmulrndx  13256  plendxnscandx  13257  plendxnvscandx  13258  dsndxnbasendx  13269  dsndxnplusgndx  13270  dsndxnmulrndx  13271  slotsdnscsi  13272  dsndxntsetndx  13273  unifndxnbasendx  13279  unifndxntsetndx  13280  setsmsdsg  15170  2logb9irr  15661  2logb3irr  15663  2logb9irrap  15667
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