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Theorem ltned 8292
Description: 'Greater than' implies not equal. (Contributed by Mario Carneiro, 27-May-2016.)
Hypotheses
Ref Expression
ltd.1  |-  ( ph  ->  A  e.  RR )
ltned.2  |-  ( ph  ->  A  <  B )
Assertion
Ref Expression
ltned  |-  ( ph  ->  A  =/=  B )

Proof of Theorem ltned
StepHypRef Expression
1 ltd.1 . . 3  |-  ( ph  ->  A  e.  RR )
2 ltned.2 . . 3  |-  ( ph  ->  A  <  B )
31, 2gtned 8291 . 2  |-  ( ph  ->  B  =/=  A )
43necomd 2488 1  |-  ( ph  ->  A  =/=  B )
Colors of variables: wff set class
Syntax hints:    -> wi 4    e. wcel 2202    =/= wne 2402   class class class wbr 4088   RRcr 8030    < clt 8213
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 619  ax-in2 620  ax-io 716  ax-5 1495  ax-7 1496  ax-gen 1497  ax-ie1 1541  ax-ie2 1542  ax-8 1552  ax-10 1553  ax-11 1554  ax-i12 1555  ax-bndl 1557  ax-4 1558  ax-17 1574  ax-i9 1578  ax-ial 1582  ax-i5r 1583  ax-13 2204  ax-14 2205  ax-ext 2213  ax-sep 4207  ax-pow 4264  ax-pr 4299  ax-un 4530  ax-setind 4635  ax-cnex 8122  ax-resscn 8123  ax-pre-ltirr 8143
This theorem depends on definitions:  df-bi 117  df-3an 1006  df-tru 1400  df-fal 1403  df-nf 1509  df-sb 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2363  df-ne 2403  df-nel 2498  df-ral 2515  df-rex 2516  df-rab 2519  df-v 2804  df-dif 3202  df-un 3204  df-in 3206  df-ss 3213  df-pw 3654  df-sn 3675  df-pr 3676  df-op 3678  df-uni 3894  df-br 4089  df-opab 4151  df-xp 4731  df-pnf 8215  df-mnf 8216  df-ltxr 8218
This theorem is referenced by:  fzodisjsn  10418  modsumfzodifsn  10657  seqf1oglem1  10780  nprm  12694  4sqlem10  12959  4sqlem17  12979  trilpolemeq1  16644
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