Bulletin of the Section of Logic 18/1 (1989)details
Table of contents
- 1. Boguslaw WOLNIEWICZ, Entailments and independence in join-semilattices2
- 2. Krzysztof SZYMANEK, On information functions, part one: Basic formal properties6
- 3. Krzysztof SZYMANEK, On information functions, part two: Applications to the logic of theory change13
- 4. Vladimir M.POPOV, On a closure of a set of classically essential formulas and on relevant implication20
- 5. Ewa GRACZYNSKA, On connections between identities and hiperidentities25
- 6. Ewa GRACZYNSKA, Regular equations and unification theory30