Use resolution to derive each conclusion. Use logical equivalence if the expression is not a clause. 1) ~a˅ b ˅ c
~b
~c

* a

2) ~a ˅ c
~ c ˅ b
a

* b

3) a => b
a v b

* b

4) a
~a ˅ c
~c ˅ d

* d

5) a ˅ b
~a ˅ c
~c ˅ d

* b v d

it is contrapositive

i could not see the question too well so check yourself again too . this is because i want you to get it correct.

35-60 students are taking math.

answer:

step-by-step explanation:

here, the total dishes = 10

dishes having meat = 3 ( chicken, meatloaf and hamburger )

thus, the probability of having meat on the chosen dishes = number of dishes having meat / total dishes

=

therefore, the probability of not having meat = 1- the probability of having meat on the chosen dishes

=

=

=

⇒ option b is correct.

6e14 is the answer.