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Theorem wecmpep 2193
Description: The elements of an epsilon well-ordering are comparable.
Assertion
Ref Expression
wecmpep ((E We A ∧ (xAyA)) → (xyx = yyx))

Proof of Theorem wecmpep
StepHypRef Expression
1 solin 2145 . . 3 ((E Or A ∧ (xAyA)) → (xEyx = yyEx))
2 epel 2124 . . . 4 (xEyxy)
3 pm4.2 148 . . . 4 (x = yx = y)
4 epel 2124 . . . 4 (yExyx)
52, 3, 4bi3or 607 . . 3 ((xEyx = yyEx) ↔ (xyx = yyx))
61, 5sylib 173 . 2 ((E Or A ∧ (xAyA)) → (xyx = yyx))
7 weso 2192 . 2 (E We AE Or A)
86, 7sylan 343 1 ((E We A ∧ (xAyA)) → (xyx = yyx))
Colors of variables: wff set class
Syntax hints:   → wi 2   ∧ wa 196   ∨ w3o 580   = weq 797   ∈ wel 803   ∈ wcel 1092   class class class wbr 2054  Ecep 2056   Or wor 2059   We wwe 2062
This theorem is referenced by:  tz7.7 2224
This theorem was proved from axioms:  ax-1 3  ax-2 4  ax-3 5  ax-mp 6  ax-4 673  ax-5 674  ax-6 675  ax-7 676  ax-gen 677  ax-8 798  ax-9 799  ax-10 800  ax-11 801  ax-12 802  ax-13 804  ax-14 805  ax-16 922  ax-17 925  ax-ext 1074  ax-rep 1075  ax-pow 1077
This theorem depends on definitions:  df-bi 128  df-or 197  df-an 198  df-3or 582  df-ex 679  df-sb 853  df-clab 1093  df-cleq 1097  df-clel 1099  df-ral 1205  df-v 1349  df-dif 1489  df-un 1490  df-in 1491  df-ss 1492  df-nul 1708  df-pw 1799  df-sn 1811  df-pr 1812  df-op 1815  df-br 2063  df-opab 2098  df-eprel 2122  df-so 2138  df-we 2186
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