English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Th(A)∈Sub(T )⇐⇒T is an extension ofA⇐⇒T ∧ φ∈A Since T is decidable, there exists an algorithm which decides for given finite A⊆L whether T φ∈Aφ or not. That is, Sub(T) is decidable. For instance, Sub({∀x∀y (x = y)}) is a counter-example to our result. This negative result, which is contrary to our initial intuition, led us to consider the existence of these ‘‘Ricean’’ undecidability results in a more general sense.

Erratum to "The Ricean Objection: An Analogue of Rice's Theorem for First-Order Theories" * Logic Journal of the IGPL, 16(6): 585-590(2008)