 Take the practice of asserting. Assertion is often said to “aim at truth” (or knowledge, Williamson 2000: Ch. 11) as well as being a “matter of putting forward propositions for others to use as evidence in the furtherance of their epistemic projects” (Milne 2009: 282). Since I take the asserted propositions to be true and since truths entail further truths, I am “committed to standing by” the logical consequences of my assertions or else to retract them if I am unable to meet challenges to my assertion or its consequences. Similarly, if the set of propositions I assert is inconsistent at least one of my assertions must fall short of being true and the set as a whole cannot be regarded as part of my evidence. Plausibly, therefore, logic does have a normative role to play in governing the practice of assertion.