Symbolic Logic

Premises do which of the following

• link conclusions to outside matters

• establish conclusions

• prove that all conclusions are valid

• prove that all conclusions are invalid

Shelley and Mary are sisters. Which of the following operators would be used?

• conjunction (dot)

• Disjunction (V)

• Material Implication (horseshoe)

• The biconditional(triple bar)

What tool is used to combine terms or propositions?

• Negations

• Operators

• Sin, Cos, & Tan

• Valid v Invalid

Which of the following is NOT a conclusion indicator

• Since

• Therefore

• As a result

• Hence

Identify the Antecedent (A) and Consequence(C) of the sentence below 

If Gary brought Emily coffee, Emily would be happy 

• (a)- Gary brings coffee, (c)- Emily is happy 

• (a)- Emily is happy (c)- Gary brings coffee

Translate the sentence below into propositional logic using the variables given

Andrew is funny (A)

• A

• A $\sim$

• $\sim$ A $\supset$ A

• A $\vee$ A

Which of the following is NOT a wff?

• A $\supset$ A

• B

• B $\sim$ A $\supset$ H

• (B $\vee$ H) $\supset$ T

When is a conjunction true?

• ONLY when both conjuncts are true

• ONLY when both conjuncts are false

• Never, it is ALWAYS false

• Conjuncts will always be true

Negations can be seen as

• the main operator of any given equation

• the opposite of truth value

• what makes a statement always true

• what makes a statement always false

A disjunction (v) is false only when

• both disjuncts are false

• both conjuncts are false

• both disjuncts are true

• both conjuncts are true