Is the operation “false < true” well defined?

Question

Does the C++ specification define:

1. the existence of the \'less than\' operator for boolean parameters, and if so,
2. the result of the 4 parameter permut

Answer 1

Boolean false is equivalent to int 0, and boolean true is equivalent to int 1. So this explains why the expression false < true => 0 < 1 is the only one which returns true.