Math
posted by Jen .
Create a Euler diagram to determine whether the syllogism is valid or invalid.
Some musicians stay up late.
Greg is a musician.
Greg stays up late.

some do , and some dont.

so it is valid?

hardly. some musicians go to bed early.
greg is a musician, greg goes to bed early. 
you have a circle for musicians
you have a circle for staying up late
the circles overlap (musicians who stay up late are in the overlapping zone, the intersection)
in the zone common to the two circles, the intersection, you have Greg. 
thank you Damon...the syllogism is invalid correct?