Combining Texts

All the ideas for 'Logical Investigations', 'Perpetual Peace' and 'Grundgesetze der Arithmetik 1 (Basic Laws)'

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23 ideas

1. Philosophy / H. Continental Philosophy / 2. Phenomenology
15570 Phenomenology is the science of essences - necessary universal structures for art, representation etc. [Husserl, by Polt]
7614 Bracketing subtracts entailments about external reality from beliefs [Husserl, by Putnam]
6893 Phenomenology aims to describe experience directly, rather than by its origins or causes [Husserl, by Mautner]
5. Theory of Logic / F. Referring in Logic / 2. Descriptions / b. Definite descriptions
13733 Frege considered definite descriptions to be genuine singular terms [Frege, by Fitting/Mendelsohn]
5. Theory of Logic / G. Quantification / 4. Substitutional Quantification
9874 Contradiction arises from Frege's substitutional account of second-order quantification [Dummett on Frege]
6. Mathematics / A. Nature of Mathematics / 3. Nature of Numbers / g. Real numbers
18252 Real numbers are ratios of quantities, such as lengths or masses [Frege]
6. Mathematics / B. Foundations for Mathematics / 1. Foundations for Mathematics
18271 We can't prove everything, but we can spell out the unproved, so that foundations are clear [Frege]
6. Mathematics / B. Foundations for Mathematics / 5. Definitions of Number / c. Fregean numbers
10623 Frege defined number in terms of extensions of concepts, but needed Basic Law V to explain extensions [Frege, by Hale/Wright]
9975 Frege ignored Cantor's warning that a cardinal set is not just a concept-extension [Tait on Frege]
6. Mathematics / C. Sources of Mathematics / 6. Logicism / a. Early logicism
18165 My Basic Law V is a law of pure logic [Frege]
12. Knowledge Sources / A. A Priori Knowledge / 2. Self-Evidence
21216 Husserl says we have intellectual intuitions (of categories), as well as of the senses [Husserl, by Velarde-Mayol]
18. Thought / D. Concepts / 3. Ontology of Concepts / c. Fregean concepts
9190 A concept is a function mapping objects onto truth-values, if they fall under the concept [Frege, by Dummett]
13665 Frege took the study of concepts to be part of logic [Frege, by Shapiro]
24. Political Theory / A. Basis of a State / 1. A People / b. The natural life
21075 The state of nature always involves the threat of war [Kant]
24. Political Theory / B. Nature of a State / 2. State Legitimacy / c. Social contract
20569 Kant made the social contract international and cosmopolitan [Kant, by Oksala]
24. Political Theory / B. Nature of a State / 2. State Legitimacy / d. General will
21079 The a priori general will of a people shows what is right [Kant]
24. Political Theory / B. Nature of a State / 3. Constitutions
21077 Each nation should, from self-interest, join an international security constitution [Kant]
21078 A constitution must always be improved when necessary [Kant]
25. Social Practice / B. Equalities / 3. Legal equality
21076 Equality is where you cannot impose a legal obligation you yourself wouldn't endure [Kant]
25. Social Practice / C. Rights / 1. Basis of Rights
20570 There is now a growing universal community, and violations of rights are felt everywhere [Kant]
20571 There are political and inter-national rights, but also universal cosmopolitan rights [Kant]
25. Social Practice / E. Policies / 1. War / c. Combatants
21073 Hiring soldiers is to use them as instruments, ignoring their personal rights [Kant]
25. Social Practice / E. Policies / 1. War / e. Peace
21074 Some trust in the enemy is needed during wartime, or peace would be impossible [Kant]