Although faith is usually associated with deities and other mythologies, certain varieties of atheism must also be considered a kind of faith (though merely being the void where a religious faith would otherwise be). Theoretically, there can be four several varieties of atheism/theism: gnostic atheism (the belief that no deities exist alongside the claim that this non-existence can be known from the evidence): gnostic theism (the belief that one or more deities exist alongside the claim that this existence can be known from the evidence); agnostic atheism (the belief that no deities exist but which also claims that the existence/non-existence of such is unknown or cannot be known); and agnostic theism (the belief that one or more deities exist but which also claims that the existence/non-e