Results 41 to 50 of about 5,823 (137)

Representing Scott sets in algebraic settings [PDF]

open access: yes, 2014
We prove that for every Scott set $S$ there are $S$-saturated real closed fields and models of Presburger ...
Dolich, Alf   +3 more
core   +2 more sources

On the connection between Nonstandard Analysis and Constructive Analysis [PDF]

open access: yes, 2013
Constructive Analysis and Nonstandard Analysis are often characterized as completely antipodal approaches to analysis. We discuss the possibility of capturing the central notion of Constructive Analysis (i.e.
Sanders, Sam
core  

A note on $\mathbb{Z}$ as a direct summand of nonstandard models of weak systems of arithmetic

open access: yes, 2016
There are nonstandard models of normal open induction ($NOI$) for which $\mathbb{Z}$ is a direct summand of their additive group. We show that this is impossible for nonstandard models of $IE_2$.
openaire   +2 more sources

Human verifications: Computable with truth values outside logic. [PDF]

open access: yesProc Natl Acad Sci U S A, 2023
Johnson-Laird PN   +2 more
europepmc   +1 more source

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