Why does IQueryable.All() return true on an empty collection?

Question

So I ran into a situation today where some production code was failing precisely because a method performed exactly as documented in MSDN. Shame on me for not reading the d

Answer 1

Returning true is also logical. You have two statements: "Have a car?" and "Is it red?" If the first statement is false, it doesn't matter what the second statement is, the result is true by modus ponens.