Bochvar's Three-Valued Logic

Requires a Wolfram Notebook System

Interact on desktop, mobile and cloud with the free Wolfram CDF Player or other Wolfram Language products.

Requires a Wolfram Notebook System

Edit on desktop, mobile and cloud with any Wolfram Language product.

This Demonstration presents a simple test for Bochvar's (1939) three-valued logic. The values are: True, False, and Undefined (or Paradoxical or Meaningless), with associated numerical values 1, 0, 1/2, respectively. The value of compound propositions is evaluated according to Bochvar's matrices for internal connectives.

Contributed by: Izidor Hafner (March 2011)
Open content licensed under CC BY-NC-SA


Snapshots


Details

A simple two-dimensional area is occupied by triangles, squares, and pentagons of three different sizes and two colors. If in a statement an individual constant with no reference appears ( in case of a world with two figures and ), then the statement is meaningless.

S. Haack, Deviant Logic, London: Cambridge University Press, 1974 p. 169.



Feedback (field required)
Email (field required) Name
Occupation Organization
Note: Your message & contact information may be shared with the author of any specific Demonstration for which you give feedback.
Send