Petitio principii: Difference between revisions

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'''Petitio principii''' is the fallacy of  
'''Petitio principii''' is the fallacy of  


#accepting as a proof an argumentation whose premises are not known to be true (no grass is green, this is grass, therefore this is not green).
#accepting as a proof an argumentation whose premises are not known to be true, or
#Unwittingly assuming the proposition that one is trying to establish
#unwittingly assuming the proposition that one is trying to establish.
#using in an intended proof a premise not known to be true by the intended audience.
 
==Links==
*[[Authors/Ockham/Summa Logicae/Book III-4/Chapter 15|Ockham Summa Logicae III-4 c15]] "DE FALLACIA PETITIONIS PRINCIPII"
*[http://plato.stanford.edu/entries/fallacies/ SEP article 'Fallacies']
 
[[Category:Logical terms]]
[[Category:Articles replacing Wikipedia]]

Latest revision as of 12:40, 18 November 2021

Petitio principii is the fallacy of

  1. accepting as a proof an argumentation whose premises are not known to be true, or
  2. unwittingly assuming the proposition that one is trying to establish.
  3. using in an intended proof a premise not known to be true by the intended audience.

Links