Undecidability of first-order intuitionistic and modal logics with two variables.
Roman KontchakovAgi KuruczMichael ZakharyaschevPublished in: Bull. Symb. Log. (2005)
Keyphrases
- modal logic
- classical logic
- conditional logic
- universally quantified
- inference rules
- situation calculus
- temporal logic
- decision procedures
- first order logic
- nonmonotonic logics
- description logics
- theorem prover
- default logic
- epistemic logic
- fuzzy set theory
- autoepistemic logic
- linear logic
- model checking
- natural deduction
- horn clauses
- random variables
- modal operators
- dynamic logic
- fuzzy sets
- dynamic programming