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Theorem ltlecasei 11252
Description: Ordering elimination by cases. (Contributed by NM, 1-Jul-2007.) (Proof shortened by Mario Carneiro, 27-May-2016.)
Hypotheses
Ref Expression
ltlecasei.1 ((𝜑𝐴 < 𝐵) → 𝜓)
ltlecasei.2 ((𝜑𝐵𝐴) → 𝜓)
ltlecasei.3 (𝜑𝐴 ∈ ℝ)
ltlecasei.4 (𝜑𝐵 ∈ ℝ)
Assertion
Ref Expression
ltlecasei (𝜑𝜓)

Proof of Theorem ltlecasei
StepHypRef Expression
1 ltlecasei.2 . 2 ((𝜑𝐵𝐴) → 𝜓)
2 ltlecasei.1 . 2 ((𝜑𝐴 < 𝐵) → 𝜓)
3 ltlecasei.4 . . 3 (𝜑𝐵 ∈ ℝ)
4 ltlecasei.3 . . 3 (𝜑𝐴 ∈ ℝ)
5 lelttric 11251 . . 3 ((𝐵 ∈ ℝ ∧ 𝐴 ∈ ℝ) → (𝐵𝐴𝐴 < 𝐵))
63, 4, 5syl2anc 590 . 2 (𝜑 → (𝐵𝐴𝐴 < 𝐵))
71, 2, 6mpjaodan 966 1 (𝜑𝜓)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 396  wo 853  wcel 2119   class class class wbr 5079  cr 11035   < clt 11177  cle 11178
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1802  ax-4 1816  ax-5 1917  ax-6 1974  ax-7 2015  ax-8 2121  ax-9 2129  ax-ext 2712  ax-sep 5225  ax-pr 5369
This theorem depends on definitions:  df-bi 208  df-an 397  df-or 854  df-3an 1094  df-tru 1550  df-fal 1560  df-ex 1787  df-sb 2074  df-clab 2719  df-cleq 2732  df-clel 2815  df-ral 3055  df-rex 3065  df-rab 3393  df-v 3434  df-dif 3893  df-un 3895  df-in 3897  df-ss 3907  df-nul 4269  df-if 4462  df-sn 4563  df-pr 4565  df-op 4569  df-br 5080  df-opab 5142  df-xp 5631  df-cnv 5633  df-xr 11181  df-le 11183
This theorem is referenced by:  iccsplit  13436  expnbnd  14192  hashf1  14417  absmax  15290  sinltx  16154  iccntr  24812  pmltpclem2  25441  cniccbdd  25453  iccvolcl  25559  ioovolcl  25562  dyaddisjlem  25587  mbfposr  25644  itg1ge0a  25703  itg2monolem1  25742  itgioo  25808  c1lip1  25989  plyeq0lem  26200  aalioulem5  26327  pserulm  26412  tanord  26527  birthdaylem3  26942  fsumharmonic  27000  chpo1ubb  27469  cos9thpiminplylem1  33973  mblfinlem2  38032  ioodvbdlimc1  46383  ioodvbdlimc2  46385  ibliooicc  46421  fourierdlem107  46663
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