23 ideas
9108 | From an impossibility anything follows [William of Ockham] |
3035 | Dialectic involves conversations with short questions and brief answers [Diog. Laertius] |
11178 | The essence or definition of an essence involves either a class of properties or a class of propositions [Fine,K] |
9107 | A proposition is true if its subject and predicate stand for the same thing [William of Ockham] |
16300 | Ockham had an early axiomatic account of truth [William of Ockham, by Halbach] |
11175 | Logical concepts rest on certain inferences, not on facts about implications [Fine,K] |
11176 | The property of Property Abstraction says any suitable condition must imply a property [Fine,K] |
9106 | The word 'every' only signifies when added to a term such as 'man', referring to all men [William of Ockham] |
11174 | A logical truth is true in virtue of the nature of the logical concepts [Fine,K] |
9113 | Just as unity is not a property of a single thing, so numbers are not properties of many things [William of Ockham] |
9110 | The words 'thing' and 'to be' assert the same idea, as a noun and as a verb [William of Ockham] |
15388 | Universals are single things, and only universal in what they signify [William of Ockham] |
11177 | Can the essence of an object circularly involve itself, or involve another object? [Fine,K] |
11173 | Being a man is a consequence of his essence, not constitutive of it [Fine,K] |
11179 | If there are alternative definitions, then we have three possibilities for essence [Fine,K] |
9109 | If essence and existence were two things, one could exist without the other, which is impossible [William of Ockham] |
1816 | Sceptics say demonstration depends on self-demonstrating things, or indemonstrable things [Diog. Laertius] |
1819 | Scepticism has two dogmas: that nothing is definable, and every argument has an opposite argument [Diog. Laertius] |
3064 | When sceptics say that nothing is definable, or all arguments have an opposite, they are being dogmatic [Diog. Laertius] |
3033 | Induction moves from some truths to similar ones, by contraries or consequents [Diog. Laertius] |
9105 | Some concepts for propositions exist only in the mind, and in no language [William of Ockham] |
1838 | Cyrenaic pleasure is a motion, but Epicurean pleasure is a condition [Diog. Laertius] |
1769 | Cynics believe that when a man wishes for nothing he is like the gods [Diog. Laertius] |