Editing Erlang Programming/guards (section)

===Multiple guards===
It is possible to use multiple guards within the same function definition or expression. When using multiple guards, a semicolon, ";", signifies a boolean "OR", while a comma, ",", signifies boolean "AND".

 the_answer_is(N) when N == 42, is_integer(N) -> true;
 geq_1_or_leq_2(N) when N >= 1; N =< 2 -> true;