logic
posted by lacey .
determine the validity of the next arguments by using Euler circles, then translate the statements into logical statements using the basic connectives, and using truth tables, determine the validity of the arguments. Compare your answers.
(a) No A is B
Some C is A
Some C is not B
(B) All B is A
All C is A
All C is B

Perhaps you will find some help here:
http://www.google.com/search?q=Euler+circles+in+logic&ie=utf8&oe=utf8&aq=t&rls=org.mozilla:enUS:official&client=firefoxa
Sra