Mark is in a bit of a quandary. He's having a party, but knowing his friends, he's having trouble deciding who he should invite.
If he invites John, he must invite Paul. If he invites Paul, he can't ask Mary. And of course, if he invites Mary, he can't ask Paul. He must invite John or Mary or both. It just wouldn't be a party without one or the other or both of them. But if he invites Mary, he must invite John.
Who can he invite to his party?
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John and Paul
ReplyDeleteI say forget the party and go to a bar and make new friends.
ReplyDeleteJayne