L 14 - 15

Question 1

what is : ~

Answer 1

called negation, significa opposto

Question 2

what is: ^

Answer 2

called conjunction significa and

Question 3

what is a tautology

Answer 3

a well formed formula that is true under every possible interpretation

Question 4

when is an argument L+ valid?

Answer 4

if there is no interpretation of L in which (the conjunction of the premises of the argument is true) and ( the conclusion of the argument is false)

Question 5

what is: v

Answer 5

calles disjunction, significa or

Question 6

what is ->

Answer 6

called conditionalization, significa if - then, non pro ester cue A sia vero e B falso (only!)