Determine if each of the following sets is closed under addition.
a) $B = \{0,1\}$
b) $T = \{0,4,8,12,16,...\}$
c) $F = \{4,5,6,7,8,9,...\}$
d) $\{x|x \in W, x > 96\}$
a) $B = \{0,1\}$ is closed under addition.
True
False
b) $T = \{0,4,8,12,16,...\}$ is closed under addition.
False
True
c) $F = \{4,5,6,7,8,9,...\}$ is closed under addition.
False
True
d) $\{x|x \in W, x > 96\}$ is closed under addition.
True
False