1. Herbrand disjunctions, cut elimination and context-free tree grammars;Afshari,2015
2. Normal form transformations;Baaz,2001
3. The automation of proof by mathematical induction;Bundy,2001
4. Rippling: Meta-Level Guidance for Mathematical Reasoning;Bundy,2005
5. Three models for the description of language;Chomsky;IRE Trans. Inf. Theory,1956