Combining Texts

All the ideas for 'fragments/reports', 'On the Syllogism IV' and 'Preface to Universal Characteristic'

expand these ideas     |    start again     |     specify just one area for these texts

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5 ideas

1. Philosophy / D. Nature of Philosophy / 2. Invocation to Philosophy

2118	All other human gifts can harm us, but not correct reasoning [Leibniz]

5. Theory of Logic / E. Structures of Logic / 6. Relations in Logic

17744

De Morgan started the study of relations and their properties [De Morgan, by Walicki]

13501

De Morgan found inferences involving relations, which eluded Aristotle's syllogistic [De Morgan, by Hart,WD]

25. Social Practice / E. Policies / 5. Education / b. Education principles

13304

Learned men gain more in one day than others do in a lifetime [Posidonius]

27. Natural Reality / D. Time / 1. Nature of Time / d. Time as measure

20820

Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus]