The proposition "It is raining and the sun is shining" is a conjunction, which means that both parts of the proposition must be true for the entire proposition to be true. Since the sun is not shining, the entire proposition is false.

The proposition "It is not raining or the sun is shining" is a disjunction, which means that either part of the proposition can be true for the entire proposition to be true. Since both parts of the proposition are true, the entire proposition is true.

The proposition "If it is raining, then the grass is wet" is a conditional, which means that if the first part of the proposition (the antecedent) is true, then the second part of the proposition (the consequent) must also be true. Since it is raining and the grass is wet, the antecedent and consequent are both true, and so the entire proposition is true.

The proposition "If it is raining, then the grass is wet" is a conditional, which means that if the first part of the proposition (the antecedent) is true, then the second part of the proposition (the consequent) must also be true. Since it is not raining, the antecedent is false, and so the entire proposition is true, regardless of the truth value of the consequent.

The proposition "It is raining and the sun is shining or it is not raining" is a disjunction, which means that either part of the proposition can be true for the entire proposition to be true. Since the second part of the proposition ("it is not raining") is true, the entire proposition is true, regardless of the truth value of the first part.

The proposition "It is raining or the sun is shining and it is not raining" is a conjunction, which means that both parts of the proposition must be true for the entire proposition to be true. Since the second part of the proposition ("it is not raining") is false, the entire proposition is false, regardless of the truth value of the first part.

The proposition "If it is raining, then the grass is wet and the sun is shining" is a conditional, which means that if the first part of the proposition (the antecedent) is true, then the second part of the proposition (the consequent) must also be true. Since it is raining and the grass is wet, the antecedent is true, but the consequent is false (since the sun is not shining), and so the entire proposition is false.

The proposition "If it is raining, then the grass is wet or the sun is shining" is a conditional, which means that if the first part of the proposition (the antecedent) is true, then the second part of the proposition (the consequent) must also be true. Since it is raining and the grass is wet, the antecedent is true, and the consequent is also true (since the sun is shining), and so the entire proposition is true.

The proposition "It is raining and the sun is shining" is a conjunction, which means that both parts of the proposition must be true for the entire proposition to be true. Since it is not raining and the sun is not shining, both parts of the proposition are false, and so the entire proposition is false.

The proposition "It is raining or the sun is shining" is a disjunction, which means that either part of the proposition can be true for the entire proposition to be true. Since the second part of the proposition ("the sun is shining") is true, the entire proposition is true, regardless of the truth value of the first part.

The proposition "If it is raining, then the grass is wet" is a conditional, which means that if the first part of the proposition (the antecedent) is true, then the second part of the proposition (the consequent) must also be true. Since it is not raining, the antecedent is false, and so the entire proposition is true, regardless of the truth value of the consequent.

The proposition "If it is raining, then the grass is wet" is a conditional, which means that if the first part of the proposition (the antecedent) is true, then the second part of the proposition (the consequent) must also be true. Since it is not raining, the antecedent is false, and so the entire proposition is true, regardless of the truth value of the consequent.

The proposition "It is raining and the sun is shining or it is not raining and the sun is not shining" is a disjunction, which means that either part of the proposition can be true for the entire proposition to be true. Since the second part of the proposition ("it is not raining and the sun is not shining") is true, the entire proposition is true, regardless of the truth value of the first part.

The proposition "It is raining or the sun is shining and it is not raining or the sun is not shining" is a conjunction, which means that both parts of the proposition must be true for the entire proposition to be true. Since both parts of the proposition are true, the entire proposition is true.

The proposition "If it is raining, then the grass is wet and if it is not raining, then the grass is not wet" is a biconditional, which means that both parts of the proposition must be true or both parts must be false for the entire proposition to be true. Since both parts of the proposition are true, the entire proposition is true.