 It might be thought that the answer must be a clear “No”, for the following reasons. First, notice that every logical truth is entailed by every proposition. If Closure held for justification, then we would have to say that everybody is justified in believing every logical truth (provided that we are willing to grant that everybody is justified in believing at least one proposition). But this doesn’t seem plausible. Some logical truths are too complicated to even parse, let alone be justified in believing. If this is true, then Closure doesn’t hold for belief (that is to say, we may fail to believe propositions entailed by propositions we already believe). The existence of very complicated logical truths also underlies another worry for Closure. For to every logical entailment between propositions there corresponds a logical truth: the (material) conditional with the entailing proposition in the antecedent and the entailed proposition in the consequent. Some of these logically true conditionals will be examples of propositions that we are not justified in believing (if only because the consequent is too complicated for beings like us to even parse). In that case, we might well be justified in believing their antecedents without being justified in believing their consequents.