Posted by Vanessa on Tuesday, February 22, 2011 at 10:47pm.
If A is a subset of B (not necessarily proper) and B is a subset of C (not necessarily proper) the A is a proper subset of C.
True or False
if false must provide a counterexample

MATH  MathMate, Wednesday, February 23, 2011 at 12:11am
A: {apple, orange, pineapple}
B: {apple, orange, pineapple}
C: {apple, orange, pineapple}
A⊆B ∧ B⊆C > A⊂C
Is this true or false?