Sum of vector involving relational operations

When given something such as

x=[0:.5:10]'

why does

sum(x>8 & x<=4) = 0

Answer 1

[Star Strider]

Think about it. Here no ‘x’ can simultaneously be >8 and <=4.

[lauuser1]

Oh okay, I get it. Thank you!

[Star Strider]

My pleasure!