Testing a Syllogism

8.	If I get into trouble with the police, my parents will be angry. My parents are angry. Therefore, I must be in trouble with the police.	Categorical Hypothetical Disjunctive	Valid Invalid
9.	All musicians have had formal music training. Bruno Mars is a musician. Therefore, he must have had formal music training.	Categorical Hypothetical Disjunctive	Valid Invalid
10.	If Joe ditches Lynda, then she will die of a broken heart. Joe will ditch Lynda. Therefore, Lynda will die of a broken heart.	Categorical Hypothetical Disjunctive	Valid Invalid
11.	All language means to communicate ideas and emotions. Swearing means to communicate emotions. Therefore, swearing is a language.	Categorical           Hypothetical            Disjunctive	Valid       Invalid

8. It is hypothetical deduction because it is an 'if', 'then' statement. The major premise has a plausible causal relationship, but the minor premise affirms the consequence, which means it is invalid.

9. It is categorical deduction because it starts with 'ALL'. The major premise has a sound inductive reasoning. The minor premise gives an example of a musician. And nothing new is introduced in the conclusion. Therefore, it is valid.
10. It is hypothetical deduction because it is an 'if', 'then' statement. It is invalid because the major premise does not have a plausible causal relationship.

11. It is categorical deduction because it starts with 'ALL'. The major premise has a sound inductive reasoning. The minor premise gives an example that swearing communicates emotion. Although, it says that swearing is a language, but it is only words of a language. The conclusion also introduces the new topic, making it invalid.