basic concepts t/f

Question 1

In a sound argument all the premises are true

Answer 1

true

Question 2

Every unsound argument is invalid

Answer 2

false

Question 3

If an argument is cogent then it is strong

Answer 3

true

Question 4

Some valid arguments have false premises and a true conclusion

Answer 4

true

Question 5

A set of statements is inconsistent when they can’t all be true at once

Answer 5

true

Question 6

Every sound argument must also be valid

Answer 6

true

Question 7

If an argument is valid then if it is sound, it has a true conclusion

Answer 7

true

Question 8

Every valid argument must be sound if it has all true premises

Answer 8

true

Question 9

No inductive argument is both strong and uncogent

Answer 9

false

Question 10

If an argument is cogent then it is valid

Answer 10

false

Question 11

All invalid arguments have false conclusions

Answer 11

false

Question 12

When the premises of an argument make its conclusion probably and the premises are in fact true, then the argument is cogent

Answer 12

false

Question 13

If an argument is valid, it has a true conclusion

Answer 13

false

Question 14

An argument can be deductively invalid and still be inductively strong

Answer 14

true

Question 15

If an argument is valid then if its conclusion is true all its premises are true too

Answer 15

false

Question 16

A cogent argument may have a probably false conclusion

Answer 16

false

Question 17

A valid argument may have a false conclusion and a true premises

Answer 17

true

Question 18

Every sound argument has a true conclusion

Answer 18

true

Question 19

Any deductive argument with true premises and a false conclusion must be invalid

Answer 19

true

Question 20

No valid argument can have a false conclusion

Answer 20

false