Let T be the set of all movie actors and actresses. For x, y is in T, define x R

Mathematics
Tutor: None Selected Time limit: 1 Day

May 4th, 2015

symmetric 

they both appear in the same movie so a Rb means bRa also

May 4th, 2015

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May 4th, 2015
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May 4th, 2015
Dec 11th, 2016
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