From the obvious existence of mediated judgments, however, it follows that there must also be immediate judgments (WL III, 125, 138–139). Immediate judgments cannot be false and must therefore be certain (WL III, 212, 229, 263). Certainty has thereby not to be taken in its objective sense in which a proposition \(s\) is certain relative to a set \(\sigma\) of propositions iff the logical probability of \(s\) relative to \(\sigma\) is 1, i.e., iff \(s\) is a logical consequence of \(\sigma\) (WL