Is Knowledge Extrinsic to Me?

David lewis: If i were to exist in a world alone, right? There's no god, nothing else. It's just me. And yet, my knowledge that there are no dogs is not intrinsic to me. A part of knowledge is truth; you can't know something that's false. So we shouldn't think it so weird to hear that divine knowledge is extrinsic, because all knowledge is Extrinsic.