This open access book constitutes the proceedings of the 29th International Conference on Automated Deduction, CADE 29, which took place in Rome, Italy, during July 2023. The 28 full papers and 5 short papers presented were carefully reviewed and selected from 77 submissions.

Certified Core-Guided MaxSAT Solving.- Superposition with Delayed Unification.- On Incremental Pre-processing for SMT.- Verified Given Clause Procedures.- QSMA: A New Algorithm for Quantified Satisfiability Modulo Theory and Assignment.- Uniform Substitution for Dynamic Logic with Communicating Hybrid Programs.- An Isabelle/HOL Formalization of the SCL(FOL) Calculus.- SCL(FOL) Can Simulate Non-Redundant Superposition Clause Learning.- Formal Reasoning about Influence in Natural Sciences Experiments.- A Theory of Cartesian Arrays (with Applications in Quantum Circuit Verification).- SAT-Based Subsumption Resolution.- A more Pragmatic CDCL for IsaSAT and targetting LLVM (Short Paper).- Proving Non-Termination by Acceleration Driven Clause Learning (Short Paper).- COOL 2 - A Generic Reasoner for Modal Fixpoint Logics (System Description).- Choose your Colour: Tree Interpolation for Quantified Formulas in SMT.- Proving Termination of C Programs with Lists.- Reasoning about Regular Properties: A Comparative Study.- Program Synthesis in Saturation.- A Uniform Formalisation of Three-Valued Logics in Bisequent Calculus.- Proving Almost-Sure Innermost Termination of Probabilistic Term Rewriting Using Dependency Pairs.- Verification of NP-hardness Reduction Functions for Exact Lattice Problems.- Buy One Get 14 Free: Evaluating Local Reductions for Modal Logic.- Left-Linear Completion with AC Axioms.- On P -interpolation in local theory extensions and applications to the study of interpolation in the description logics EL, EL+.- Theorem Proving in Dependently-Typed Higher-Order Logic.- Towards Fast Nominal Anti-Unification of Letrec-Expressions.- Confluence Criteria for Logically Constrained Rewrite Systems.- Towards a Verified Tableau Prover for a Quantifier-Free Fragment of Set Theory.- An Experimental Pipeline for Automated Reasoning in Natural Language (Short paper).- Combining Combination Properties: An Analysis of Stable-infiniteness, Convexity, and Politeness.- Decidability of difference logic over the reals with uninterpreted unary predicates.- Incremental Rewriting Modulo SMT.- Iscalc: an Interactive Symbolic Computation Framework (System Description).

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