A.(p←﹁q)∧﹁q├p B.(﹁p←q)∧p├﹁q C.(﹁p←﹁q)∧p├q D.(﹁p←q)∧﹁p├q E.(p←﹁q)∧q├﹁p
A.(p→﹁q)∧﹁p├q B.(p→﹁q)∧q├﹁p C.(﹁p→q)∧p├﹁q D.(﹁p→﹁q)∧q├p E.(﹁p→q)∧q├﹁p
A.(p∨q)∧p├﹁q B.(pqr)∧﹁p├q∧r C.(pqr)∧﹁p├qr D.(p∨q∨r)∧﹁p├q∨r E.(p∨q∨r∨s)∧(﹁p∧﹁q)├r∨s