Logic and arithmetic and logic or short

Check the left only Boolean logic and is to return the value false, but logic or to return the value true

Logic and

√ &&. . . No matter how right, left is true, that the right of return

× &&. . . No matter how right, left is false, then return to the left

Logical or

√ ||. . . No matter how right, left is true, then return to the left

× ||. . . No matter how right, left is false, that the right of return