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Topic: A short proof, check it for errors please
Replies: 16   Last Post: Oct 2, 2013 3:15 PM

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Victor Porton

Posts: 621
Registered: 8/1/05
A short proof, check it for errors please
Posted: Sep 30, 2013 2:14 PM
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Please check for errors this short proof of the formula:

$(\bigcap F) \circ A = \bigcap \{ f \circ A | f \in F \}$

where $F$ is a set of binary relations and $A$ is a binary relation.

Does this formula always hold? Or is my proof with an error?

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