Combining Philosophers

Ideas for David Fair, Augustus De Morgan and William D. Hart

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2 ideas

5. Theory of Logic / G. Quantification / 2. Domain of Quantification

17743

De Morgan introduced a 'universe of discourse', to replace Boole's universe of 'all things' [De Morgan, by Walicki]

5. Theory of Logic / G. Quantification / 3. Objectual Quantification

13506

The universal quantifier can't really mean 'all', because there is no universal set [Hart,WD]