The uncertainty of truth

The uncertainty of truth.

We live in a world where uncertainty has been eliminated. The publication of the Doctrine of Certitude meant that uncertainty was officially forbidden for the first time in history. The passage of this law rendered the phrases ‘I don’t know’, ‘I’m not sure’ and even ‘Huh . . .’ illegal and punishable by life imprisonment. Neoastrophysicists, using chaos theory, have modelled intergalactic maps ...

Truth Maintenance Under Uncertainty

This paper addresses the problem of resolving errors under uncertainty in a rule-based sys­ tem. A new approach has been developed that reformulates this problem as a neural-network learning problem. The strength and the fun­ damental limitations of this approach are ex­ plored and discussed. The main result is that neural heuristics can be applied to solve some but not all problems in rule-bas...

The Uncertainty of the Truth 1

How to trust without knowing the truth? This is probably the key question that arises while designing applications using virtual tags. A virtual tag is a geo-referenced note that is visible for all the people that are in a specific place. But what if you see a tag about an event or an object that is not here? How to know if you are facing a spam attack, or if the tag is simply outdated? And, ho...

On the Unavoidable Uncertainty of Truth in Dynamic Geometry Proving

The aim of this note is to discuss some issues posed by the emergency of universal interfaces able to decide on the truth of geometric statements. More specifically, we consider a recent GeoGebra module allowing general users to verify standard geometric theorems. Working with this module in the context of Varignon’s theorem, we were driven – by the characteristics of the GeoGebra interface– to...

Uncertainty Theories, Degrees of Truth and Epistemic States