The first issue of 2024 presents several works that merit the attention of logicians. The volume opens with a paper by D.V. Zaitsev, in which the author constructs a calculus of non-derivability for classical logic, closely related to non-monotonic logics. M. Kelikli's paper offers a fresh perspective on the perennial topic of logical paradoxes and strategies for coexisting with them. V.V. Dolgorukov explores an alternative approach to constructing semantics for epistemic logics, distinct from the Kripkean framework. K.G. Frolov's contribution is devoted to the logical analysis of meta-argumentation and the objectification of discussions.