What's New

Updated to iOS 13.0, with some minor interface improvements.

App Description

Designed for introductory logic courses, this app allows you to:
- Construct syllogisms by choosing quality and quantity of premises and conclusion, and position of the middle term.
- Test validity of syllogisms.
- Display Venn diagrams.

iPhone Screenshots

(click to enlarge)

Syllogism screenshot 1 Syllogism screenshot 2 Syllogism screenshot 3 Syllogism screenshot 4

App Changes

  • February 02, 2016 New version 1.2
  • February 04, 2016 New version 2.0
  • March 15, 2016 New version 2.1
  • October 15, 2019 New version 2.2
  • July 15, 2020 New version 2.3