1.2ex V                       Valid Arguments

Drag the description (in red) to the appropriate argument below. (Place
them at the top left of the argument -- they will "snap" into place over the white space.) Start.

All ravens are birds.
No birds are mammals.
_____________
No ravens are mammals.
Some monkeys are human.
All humans have tails.
_____________
Some monkeys have tails.
All whales are fish.
All fish fly.
_______
All whales fly.
Valid, True Premises,
False Conclusion
Valid, True Premises,
True Conclusion
Valid, False Premises,
False Conclusion
Valid, False Premises,
True Conclusion
Invalid, True Premises,
False Conclusion