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Theorem lem3.4.5 1078
Description: Equation 3.13 of [PavMeg1999] p. 9. (Contributed by Roy F. Longton, 29-Jun-2005.) (Revised by Roy F. Longton, 3-Jul-2005.)
Hypothesis
Ref Expression
lem3.4.5.1 (a5 b) = 1
Assertion
Ref Expression
lem3.4.5 (a2 (bc)) = 1

Proof of Theorem lem3.4.5
StepHypRef Expression
1 lem3.4.5.1 . . 3 (a5 b) = 1
21lem3.3.5 1055 . 2 (a1 (bc)) = 1
322vwomr1a 363 1 (a2 (bc)) = 1
Colors of variables: term
Syntax hints:   = wb 1  wo 6  1wt 8  2 wi2 13  5 wid5 22
This theorem was proved from axioms:  ax-a1 30  ax-a2 31  ax-a3 32  ax-a4 33  ax-a5 34  ax-r1 35  ax-r2 36  ax-r4 37  ax-r5 38  ax-wom 361
This theorem depends on definitions:  df-a 40  df-t 41  df-f 42  df-i0 43  df-i1 44  df-i2 45  df-le1 130  df-le2 131  df-id5 1047  df-b1 1048
This theorem is referenced by:  lem3.4.6  1079
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