Question

1. Determine whether or not the following argument is valid or invalid. Show your work, clearly explaining how you determined its validity or invalidity.

You may justify your answer either by use of a truth table or by citing or known valid argument forms or fallacies.

Justifications that appeal to common sense, which are based on opinion or perceptions, or which otherwise do not analyse the underlying logic will not be accepted.

THE ARGUMENT:

If you have just cause why these two should not be lawfully wed, you should speak now or forever hold your peace.

If you know that he is still legally married to his first wife, then you have just cause why these two should not be lawfully wed.

You should not forever hold your peace.

You know that he is still legally married to his first wife.

Therefore you should speak now.

2.

Determine whether or not the following statement is true or false. Justify your answer.

"Everytime I have won the Nobel Prize, it has been for Unicorn Husbandry."

ANSWER BOTH PLEASE!!

Answer 1

OLet P: You have the cause why thare two should mot be law fully wed. 4: You should Speak mow You, hold your peac fore e You know he legaly mamed to his finstwife Now ising theae symbola the asgument ver shauld h: Still an be wnten symbolicaly 9 Validi ty Proof hen Premise aven Premise] 2. P 3. p madus Ponnens] I By 12 Using 4. p(aVA) [Given Premise] By 3u using modus Ponnon 5. 9Vh Premise] Given 6. 7h By 5&6, Using Diumetive Sylagi 7. 9 is a Valid one anqunent Thus the P: Every time I have one the Noble Pri2e a It has beenfor UniCorn Hus bandry. The state mont is P 1PVQ p Q have never won the Nobel Piae Now Since P is ue 7PUG 1s taue. Thus Pa is toua TRUE Ans 21