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Theorem fh2rc 462
Description: Foulis-Holland Theorem.
Hypotheses
Ref Expression
fh.1 a C b
fh.2 a C c
Assertion
Ref Expression
fh2rc ((c v a) ^ b) = ((c ^ b) v (a ^ b))

Proof of Theorem fh2rc
StepHypRef Expression
1 fh.1 . . 3 a C b
2 fh.2 . . 3 a C c
31, 2fh2r 456 . 2 ((a v c) ^ b) = ((a ^ b) v (c ^ b))
4 ax-a2 30 . . 3 (c v a) = (a v c)
54ran 71 . 2 ((c v a) ^ b) = ((a v c) ^ b)
6 ax-a2 30 . 2 ((c ^ b) v (a ^ b)) = ((a ^ b) v (c ^ b))
73, 5, 63tr1 60 1 ((c v a) ^ b) = ((c ^ b) v (a ^ b))
Colors of variables: term
Syntax hints:   = wb 1   C wc 3   v wo 6   ^ wa 7
This theorem is referenced by:  mlalem 814  bi3 821  bi4 822  mlaconj4 826  comanblem1 852  mhlem 858  mhlem1 859  marsdenlem2 863  cancellem 873
This theorem was proved from axioms:  ax-a1 29  ax-a2 30  ax-a3 31  ax-a4 32  ax-a5 33  ax-r1 34  ax-r2 35  ax-r4 36  ax-r5 37  ax-r3 421
This theorem depends on definitions:  df-b 38  df-a 39  df-t 40  df-f 41  df-le1 122  df-le2 123  df-c1 124  df-c2 125
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