Second Nature

Concepts, Meanings and Truth: First Nature, Second Nature and Hard Work

I argue that linguistic meanings are instructions to build monadic concepts that lie between lexicalizable concepts and truth-evaluable judgments. In acquiring words, humans use concepts of various adicities to introduce concepts that can be fetched and systematically combined via certain conjunctive operations, which require monadic inputs. These concepts do not have Tarskian satisfaction cond...

Extrafoveal viewing reveals the nature of second-order human vision.

For the majority of visual tasks, performance in extrafoveal vision can be equated with that at the fovea simply by a change in spatial scale of the stimuli (magnification). We sought to exploit this association to examine the nature of second-order vision. More specifically, we investigate the relationship between the scale of second-order vision and the scale of its first-order input. We find...

The Nature of Elliptical Galaxies, Proceedings of the Second

High-z objects and cold-dark-matter cosmogonies: the case of 53W091. Abstract: The recently discovered high redshift galaxy, 53W091, with accurate age measurements (Dunlop et al 1996) provides a measure of the small-scale power of the primordial density field and, as we show, a crucial test of the inflation-inspired models. It allows Ω=1 cosmologies only for low values of H 0 , but then pushes ...

On the Nature of Gödel’s Second Incompleteness Theorem

In several recent articles, we have shown how such totality conditions are related to both generalizations and boundary-case exceptions for the Second Incompleteness Theorem. For instance, our article [2] showed how essentially all axiom systems recognizing addition and multiplication as “total” functions are unable to prove a theorem affirming their semantic tableaux consistency. In contrast, ...

HUsseRl’s ConCePt of PosItIon-tAKIng And seCond nAtURe