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Theorem gtned 8072
Description: 'Less than' implies not equal. See also gtapd 8596 which is the same but for apartness. (Contributed by Mario Carneiro, 27-May-2016.)
Hypotheses
Ref Expression
ltd.1 (𝜑𝐴 ∈ ℝ)
ltned.2 (𝜑𝐴 < 𝐵)
Assertion
Ref Expression
gtned (𝜑𝐵𝐴)

Proof of Theorem gtned
StepHypRef Expression
1 ltd.1 . 2 (𝜑𝐴 ∈ ℝ)
2 ltned.2 . 2 (𝜑𝐴 < 𝐵)
3 ltne 8044 . 2 ((𝐴 ∈ ℝ ∧ 𝐴 < 𝐵) → 𝐵𝐴)
41, 2, 3syl2anc 411 1 (𝜑𝐵𝐴)
Colors of variables: wff set class
Syntax hints:  wi 4  wcel 2148  wne 2347   class class class wbr 4005  cr 7812   < clt 7994
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-pre-ltirr 7925
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-rab 2464  df-v 2741  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-xp 4634  df-pnf 7996  df-mnf 7997  df-ltxr 7999
This theorem is referenced by:  ltned  8073  seq3f1olemqsumkj  10500  nn0opthlem2d  10703  zfz1isolemiso  10821  ennnfonelemim  12427  logbgcd1irr  14424  logbgcd1irraplemexp  14425
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