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Theorem endomtr 7081
Description: Transitivity of equinumerosity and dominance. (Contributed by NM, 7-Jun-1998.)
Assertion
Ref Expression
endomtr  |-  ( ( A  ~~  B  /\  B  ~<_  C )  ->  A  ~<_  C )

Proof of Theorem endomtr
StepHypRef Expression
1 endom 7053 . 2  |-  ( A 
~~  B  ->  A  ~<_  B )
2 domtr 7076 . 2  |-  ( ( A  ~<_  B  /\  B  ~<_  C )  ->  A  ~<_  C )
31, 2sylan 283 1  |-  ( ( A  ~~  B  /\  B  ~<_  C )  ->  A  ~<_  C )
Colors of variables:    wff set class
This proof depends on syntax axioms:    -> wi 4    /\ wa 104   class class class wbr 4131    ~~ cen 7024    ~<_ cdom 7025
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-14 2212  ax-ext 2220  ax-sep 4251  ax-pow 4313  ax-pr 4348  ax-un 4580
This proof depends on definitions:  df-bi 117  df-3an 1011  df-tru 1405  df-nf 1514  df-sb 1816  df-eu 2089  df-mo 2090  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ral 2533  df-rex 2534  df-v 2823  df-un 3224  df-in 3226  df-ss 3233  df-pw 3690  df-sn 3715  df-pr 3716  df-op 3718  df-uni 3936  df-br 4132  df-opab 4194  df-id 4440  df-xp 4782  df-rel 4783  df-cnv 4784  df-co 4785  df-dm 4786  df-rn 4787  df-fun 5382  df-fn 5383  df-f 5384  df-f1 5385  df-f1o 5387  df-en 7027  df-dom 7028
This theorem is used by:  cnvct  7101  xpdom1g  7135  xpdom3m  7136  domen1  7146  mapdom1g  7151  phplem4dom  7167  phpm  7171  fict  7174  fisbth  7191  fientri3  7226  difinfsn  7446  pw1dom2  7592  qnnen  13380  nninfdc  13402  isnzr2  14600
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