nonstandard logics and extensions

    Top: Science: Math: Logic_and_Foundations: Nonstandard_Logics_and_Extensions:

• - Wikipedia (free encyclopedia) article.
  
• - Article in the Stanford Encyclopaedia of Philosophy by John L. Bell. Infinitary Logic is a branch of formal logic where finitary formulae are replaced by potentially infinitary mathematical entities.
  
• - Shows how a number of representative logics fit together. The interrelationships usually given as something of the form: System X is system Y plus the axiom Z. By John Halleck.
  
• - A comprehensive listing of flavours of non-standard logic with brief descriptions and references, compiled by Peter Suber.
  
• - Notes defining the subject. Available in HTML and PS formats.