Metamath Proof Explorer < Previous   Next > Nearby theorems Mirrors  >  Home  >  MPE Home  >  Th. List  >  sdomtr Structured version   Visualization version   GIF version

Theorem sdomtr 8644
 Description: Strict dominance is transitive. Theorem 21(iii) of [Suppes] p. 97. (Contributed by NM, 9-Jun-1998.)
Assertion
Ref Expression
sdomtr ((𝐴𝐵𝐵𝐶) → 𝐴𝐶)

Proof of Theorem sdomtr
StepHypRef Expression
1 sdomdom 8526 . 2 (𝐴𝐵𝐴𝐵)
2 domsdomtr 8641 . 2 ((𝐴𝐵𝐵𝐶) → 𝐴𝐶)
31, 2sylan 580 1 ((𝐴𝐵𝐵𝐶) → 𝐴𝐶)
 Colors of variables: wff setvar class Syntax hints:   → wi 4   ∧ wa 396   class class class wbr 5063   ≼ cdom 8496   ≺ csdm 8497 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1789  ax-4 1803  ax-5 1904  ax-6 1963  ax-7 2008  ax-8 2109  ax-9 2117  ax-10 2138  ax-11 2153  ax-12 2169  ax-ext 2798  ax-sep 5200  ax-nul 5207  ax-pow 5263  ax-pr 5326  ax-un 7451 This theorem depends on definitions:  df-bi 208  df-an 397  df-or 844  df-3an 1083  df-tru 1533  df-ex 1774  df-nf 1778  df-sb 2063  df-mo 2620  df-eu 2652  df-clab 2805  df-cleq 2819  df-clel 2898  df-nfc 2968  df-ral 3148  df-rex 3149  df-rab 3152  df-v 3502  df-dif 3943  df-un 3945  df-in 3947  df-ss 3956  df-nul 4296  df-if 4471  df-pw 4544  df-sn 4565  df-pr 4567  df-op 4571  df-uni 4838  df-br 5064  df-opab 5126  df-id 5459  df-xp 5560  df-rel 5561  df-cnv 5562  df-co 5563  df-dm 5564  df-rn 5565  df-res 5566  df-ima 5567  df-fun 6354  df-fn 6355  df-f 6356  df-f1 6357  df-fo 6358  df-f1o 6359  df-er 8279  df-en 8499  df-dom 8500  df-sdom 8501 This theorem is referenced by:  sdomn2lp  8645  2pwuninel  8661  2pwne  8662  r1sdom  9192  alephordi  9489  pwsdompw  9615  gruina  10229  rexpen  15571
 Copyright terms: Public domain W3C validator