Does ruby have an array sum method for boolean values?

Question

Ruby allows you to do

[5,5,5].sum
=> 15

Is there anything for doing boolean arithmetic on an array like

[true, true, true].sum
=> true
[true, false, true].sum
=> false

Answer 1

[true, true, true].all?

will return true.

[true, false, true].all?

will return false.

Furthermore, if you want to boolean OR the values:

[true, false, true].any? 

returns true.