The (effective) Suslin-Kleene Theorem is obtained as a corollary of a standard proof of the classical Suslin Theorem, by noticing that it is mostly constructive and applying to it...
This paper is a sequel to the papers [4, 6] in which an alternative skolemization method called ekolemization was introduced that, when applied to the strong existential quantifie...
The theory of Schauder hats is a beautiful and powerful tool for investigating, under several respects, the algebraic semantics of Lukasiewicz infinite-valued logic [CDM99], [MMM07...
Locatedness is one of the fundamental notions in constructive mathematics. The existence of a positivity predicate on a locale, i.e. the locale being overt, or open, has proved to ...
I use generic embeddings induced by generic normal measures on P() that can be forced to exist if is an indestructibly weakly compact cardinal. These embeddings can be used in or...
The characteristic sequence of hypergraphs Pn : n < associated to a formula (x; y), introduced in [5], is defined by Pn(y1, . . . yn) = (x) in (x; yi). We continue the study o...