WorksheetsIntro to Logic chapter 4 pt.1
Total questions: 5
Worksheet time: 3mins
Which of the following are substation instances of the following form?
(p ∨ q) ∨ q
(((A ∨ B) ∨ (F ∨ J)) ∨ J)
((E ≡ D) ∨ ~E)
(((A ≡ B) ∨ (F ∨ J)) ∨(F ∨ J))
(((A ≡ B) ∨ (F ∨ J)) ∨ (A ≡ B))
A conditional is false when it is true or false.
True
False
A conjunction is false if and only if both conjuncts are false.
True
False
In Sentential Logic, statement constants is a
Lower-case letter that symbolizes a particular simple sentence
Capital letter (mid-alphabet) that can take as a substitution instance any statement of sentential logic.
Capital letter that symbolizes a particular simple sentence
Lower-case letter (mid-alphabet) that can take as a substitution instance any statement of sentential logic.
How many columns would you need if there are three variables?
(3
4
8
9
