Theorem lem4.6.6i1j2 1093

Description: Equation 4.14 of [MegPav2000] p. 23. The variable i in the paper is set to 1, and j is set to 2. (Contributed by Roy F. Longton, 1-Jul-2005.)

Assertion

Ref	Expression
lem4.6.6i1j2	((a →1 b) ∪ (a →2 b)) = (a →0 b)

Proof of Theorem lem4.6.6i1j2

Step	Hyp	Ref	Expression
1		u12lem 771	1 ((a →1 b) ∪ (a →2 b)) = (a →0 b)

Syntax hints:   = wb 1   ∪ wo 6   →₀ wi0 11   →₁ wi1 12   →₂ wi2 13

This theorem was proved from axioms:  ax-a1 30  ax-a2 31  ax-a3 32  ax-a5 34  ax-r1 35  ax-r2 36  ax-r4 37  ax-r5 38

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

This theorem is referenced by: (None)