1: P: “Ahmad comes to the party", Q: "Salim comes to the party", R: "Khalid comes to the party", S: "Bader comes to the party". Write the following propositions using P, Q, R,S and logical connectives: a) "Nether Ahmad nor Salim come to the party". ) "If Bader comes to the party, then Salim and Khalid come too". ) "Khalid comes to the party only if Ahmad and Salim do not come". Let P, Q,R and S be the propositions:

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