Locate the Main Operator

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N.B. This exercise is only partly functional. It should tell you which answers are right and which are wrong. For now it just gives the raw score.


Which is the main connective in each of the following wffs?

1.   ~(A ⊃ B)
a. the left parenthesis c. the tilde
b. the triple bar d. the horeshoe

 
 
 
2. ((A ⊃ B) v ~C)
a.the tilde c. the ampersand
b.the horshoe d. the wedge

 
 
3.  ((A ⊃ B) ≡ ~C)
a. the wedge c. the tilde
b.the triple-bar d. the horshoe

 

 
 

4.  ((A & B) & ~C)
a. the second ampersand c. the tilde 
b.  the first ampersand d. the smoger

 

 
 

5. (A ⊃ ((B ⊃A) v B))
a. the wedge  c. the tilde
b. the horseshoe d. the first horseshoe

 

 
 

6.  ((A ⊃ ~C) & ((B ⊃ A) v B)))
a. the wedge c. the tilde
b. the second horseshoe d.the ampersand

 

 
 

7.  (D v (~B ≡ (~R & ~I)))
a. the triple-bar c. the ampersand
b. the first tilde d. the wedge

 

 
 

8. ((D v ~B) ≡ (~R & ~I))
a. the triple-bar c. the first tilde
b. the wedge d. the second tilde

 

 
 

9.  ~~((D v ~B) ≡ (~R & ~I))
a. the triple-bar c. the second tilde 
b. the wedge d.the first tilde

 

 
 

10.  ((A ≡ B) ≡ (C ≡ A))
a. the second triple-bar c. the first triple-bar 
b. the third triple-bar d. all of the above

 

 

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