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Theorem ordtr1 4491
Description: Transitive law for ordinal classes. (Contributed by NM, 12-Dec-2004.)
Assertion
Ref Expression
ordtr1 (Ord 𝐶 → ((𝐴𝐵𝐵𝐶) → 𝐴𝐶))

Proof of Theorem ordtr1
StepHypRef Expression
1 ordtr 4481 . 2 (Ord 𝐶 → Tr 𝐶)
2 trel 4199 . 2 (Tr 𝐶 → ((𝐴𝐵𝐵𝐶) → 𝐴𝐶))
31, 2syl 14 1 (Ord 𝐶 → ((𝐴𝐵𝐵𝐶) → 𝐴𝐶))
Colors of variables: wff set class
Syntax hints:  wi 4  wa 104  wcel 2202  Tr wtr 4192  Ord word 4465
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-io 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-ext 2213
This theorem depends on definitions:  df-bi 117  df-tru 1401  df-nf 1510  df-sb 1811  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2364  df-v 2805  df-in 3207  df-ss 3214  df-uni 3899  df-tr 4193  df-iord 4469
This theorem is referenced by:  ontr1  4492  ordwe  4680  dfsmo2  6496  smores2  6503  smoel  6509  tfr1onlemsucaccv  6550  tfr1onlembxssdm  6552  tfr1onlembfn  6553  tfr1onlemaccex  6557  tfr1onlemres  6558  tfrcllemsucaccv  6563  tfrcllembxssdm  6565  tfrcllembfn  6566  tfrcllemaccex  6570  tfrcllemres  6571  tfrcl  6573  ordiso2  7277
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