Formally fallacious argument LIFE 6 years ago Formally fallacious argument: An invalid argument. Source: ‘What is Good? What is Bad? The Value of All Values across Time, Place and Theories’ by John McMurtry, Philosophy and World Problems, Volume I-III, UNESCO in partnership with Encyclopedia of Life Support Systems: Oxford, 2004-11. Share this:Print Informally fallacious argumentDate21 Aug 2018In relation toSimilar postFallacyDate20 Aug 2018In relation toSimilar postExternalist fallacyDate18 Aug 2018In relation toSimilar post