Combining Philosophers

All the ideas for Douglas Lackey, Adrian Bardon and David Hilbert

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55 ideas

3. Truth / G. Axiomatic Truth / 1. Axiomatic Truth
If axioms and their implications have no contradictions, they pass my criterion of truth and existence [Hilbert]
5. Theory of Logic / D. Assumptions for Logic / 2. Excluded Middle
You would cripple mathematics if you denied Excluded Middle [Hilbert]
5. Theory of Logic / K. Features of Logics / 1. Axiomatisation
The facts of geometry, arithmetic or statics order themselves into theories [Hilbert]
Axioms must reveal their dependence (or not), and must be consistent [Hilbert]
5. Theory of Logic / L. Paradox / 5. Paradoxes in Set Theory / b. Cantor's paradox
Sets always exceed terms, so all the sets must exceed all the sets [Lackey]
5. Theory of Logic / L. Paradox / 5. Paradoxes in Set Theory / c. Burali-Forti's paradox
It seems that the ordinal number of all the ordinals must be bigger than itself [Lackey]
6. Mathematics / A. Nature of Mathematics / 1. Mathematics
Hilbert wanted to prove the consistency of all of mathematics (which realists take for granted) [Hilbert, by Friend]
I aim to establish certainty for mathematical methods [Hilbert]
We believe all mathematical problems are solvable [Hilbert]
6. Mathematics / A. Nature of Mathematics / 2. Geometry
Hilbert aimed to eliminate number from geometry [Hilbert, by Hart,WD]
6. Mathematics / A. Nature of Mathematics / 5. The Infinite / a. The Infinite
No one shall drive us out of the paradise the Cantor has created for us [Hilbert]
We extend finite statements with ideal ones, in order to preserve our logic [Hilbert]
Only the finite can bring certainty to the infinite [Hilbert]
6. Mathematics / A. Nature of Mathematics / 5. The Infinite / d. Actual infinite
The idea of an infinite totality is an illusion [Hilbert]
6. Mathematics / A. Nature of Mathematics / 5. The Infinite / j. Infinite divisibility
There is no continuum in reality to realise the infinitely small [Hilbert]
6. Mathematics / A. Nature of Mathematics / 5. The Infinite / l. Limits
The modern idea of 'limit' allows infinite quantities to have a finite sum [Bardon]
6. Mathematics / B. Foundations for Mathematics / 2. Proof in Mathematics
To decide some questions, we must study the essence of mathematical proof itself [Hilbert]
6. Mathematics / B. Foundations for Mathematics / 3. Axioms for Geometry
Euclid axioms concerns possibilities of construction, but Hilbert's assert the existence of objects [Hilbert, by Chihara]
Hilbert's formalisation revealed implicit congruence axioms in Euclid [Hilbert, by Horsten/Pettigrew]
Hilbert's geometry is interesting because it captures Euclid without using real numbers [Hilbert, by Field,H]
The whole of Euclidean geometry derives from a basic equation and transformations [Hilbert]
6. Mathematics / B. Foundations for Mathematics / 4. Axioms for Number / a. Axioms for numbers
Number theory just needs calculation laws and rules for integers [Hilbert]
6. Mathematics / C. Sources of Mathematics / 4. Mathematical Empiricism / c. Against mathematical empiricism
The existence of an arbitrarily large number refutes the idea that numbers come from experience [Hilbert]
6. Mathematics / C. Sources of Mathematics / 6. Logicism / d. Logicism critique
Logic already contains some arithmetic, so the two must be developed together [Hilbert]
6. Mathematics / C. Sources of Mathematics / 7. Formalism
The grounding of mathematics is 'in the beginning was the sign' [Hilbert]
Hilbert substituted a syntactic for a semantic account of consistency [Hilbert, by George/Velleman]
Hilbert said (to block paradoxes) that mathematical existence is entailed by consistency [Hilbert, by Potter]
The subject matter of mathematics is immediate and clear concrete symbols [Hilbert]
6. Mathematics / C. Sources of Mathematics / 8. Finitism
Hilbert aimed to prove the consistency of mathematics finitely, to show infinities won't produce contradictions [Hilbert, by George/Velleman]
Mathematics divides in two: meaningful finitary statements, and empty idealised statements [Hilbert]
7. Existence / A. Nature of Existence / 3. Being / e. Being and nothing
An equally good question would be why there was nothing instead of something [Bardon]
11. Knowledge Aims / B. Certain Knowledge / 1. Certainty
My theory aims at the certitude of mathematical methods [Hilbert]
26. Natural Theory / C. Causation / 9. General Causation / c. Counterfactual causation
Why does an effect require a prior event if the prior event isn't a cause? [Bardon]
26. Natural Theory / D. Laws of Nature / 8. Scientific Essentialism / d. Knowing essences
By digging deeper into the axioms we approach the essence of sciences, and unity of knowedge [Hilbert]
27. Natural Reality / A. Classical Physics / 2. Thermodynamics / d. Entropy
Becoming disordered is much easier for a system than becoming ordered [Bardon]
27. Natural Reality / C. Space / 6. Space-Time
The universe expands, so space-time is enlarging [Bardon]
27. Natural Reality / D. Time / 1. Nature of Time / c. Idealist time
We should treat time as adverbial, so we don't experience time, we experience things temporally [Bardon, by Bardon]
27. Natural Reality / D. Time / 1. Nature of Time / i. Denying time
How can we question the passage of time, if the question takes time to ask? [Bardon]
27. Natural Reality / D. Time / 2. Passage of Time / b. Rate of time
What is time's passage relative to, and how fast does it pass? [Bardon]
27. Natural Reality / D. Time / 2. Passage of Time / e. Tensed (A) series
The A-series says a past event is becoming more past, but how can it do that? [Bardon]
27. Natural Reality / D. Time / 2. Passage of Time / f. Tenseless (B) series
The B-series needs a revised view of causes, laws and explanations [Bardon]
The B-series is realist about time, but idealist about its passage [Bardon]
The B-series adds directionality when it accepts 'earlier' and 'later' [Bardon]
27. Natural Reality / D. Time / 2. Passage of Time / g. Time's arrow
To define time's arrow by causation, we need a timeless definition of causation [Bardon]
We judge memories to be of the past because the events cause the memories [Bardon]
The psychological arrow of time is the direction from our memories to our anticipations [Bardon]
The direction of entropy is probabilistic, not necessary, so cannot be identical to time's arrow [Bardon]
It is arbitrary to reverse time in a more orderly universe, but not in a sub-system of it [Bardon]
27. Natural Reality / D. Time / 2. Passage of Time / h. Change in time
It seems hard to understand change without understanding time first [Bardon]
We experience static states (while walking round a house) and observe change (ship leaving dock) [Bardon]
27. Natural Reality / D. Time / 2. Passage of Time / i. Time and motion
The motion of a thing should be a fact in the present moment [Bardon]
Experiences of motion may be overlapping, thus stretching out the experience [Bardon]
27. Natural Reality / D. Time / 2. Passage of Time / j. Time travel
At least eternal time gives time travellers a possible destination [Bardon]
Time travel is not a paradox if we include it in the eternal continuum of events [Bardon]
27. Natural Reality / D. Time / 3. Parts of Time / d. Measuring time
We use calendars for the order of events, and clocks for their passing [Bardon]