The relation 1---Select---isis not reflexive, because every actor/actress 2---Se

Question

The relation 1---Select---isis not reflexive, because every actor/actress 2---Select---has beenhas not been in a movie with 3---Select---himself/herselfanother actor/actress .

The relation 4---Select---isis not symmetric, because if a has been in a movie with b then b 5---Select---has beenhas not been in a movie with 6---Select---ab .

The relation 7---Select---isis not transitive, because a could appear with b in a movie, b could appear in another movie with c, and that 8---Select---wouldwould not guarantee that a will appear in a movie with 9---Select---bc .

Explanation / Answer

The relation 1is reflexive, because every actor/actress 2 has been in a movie with 3- himself/herself

The relation 4 is symmetric, because if a has been in a movie with b then b 5 has been in a movie with 6 a

The relation 7- is not transitive, because a could appear with b in a movie, b could appear in another movie with c, and that 8 would not guarantee that a will appear in a movie with 9 c .

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