Combining Texts
Ideas for
'Introduction to the Philosophy of History', 'Philosophical Logic' and 'Naming and Necessity preface'
expand these ideas
|
start again
|
choose
another area for these texts
display all the ideas for this combination of texts
9 ideas
10. Modality / A. Necessity / 4. De re / De dicto modality
|
15420
|
De re modality seems to apply to objects a concept intended for sentences [Burgess]
|
10. Modality / A. Necessity / 6. Logical Necessity
|
15419
|
General consensus is S5 for logical modality of validity, and S4 for proof [Burgess]
|
|
15417
|
Logical necessity has two sides - validity and demonstrability - which coincide in classical logic [Burgess]
|
10. Modality / B. Possibility / 8. Conditionals / a. Conditionals
|
15422
|
Three conditionals theories: Materialism (material conditional), Idealism (true=assertable), Nihilism (no truth) [Burgess]
|
|
15423
|
It is doubtful whether the negation of a conditional has any clear meaning [Burgess]
|
10. Modality / C. Sources of Modality / 1. Sources of Necessity
|
16984
|
I don't think possible worlds reductively reveal the natures of modal operators etc. [Kripke]
|
10. Modality / D. Knowledge of Modality / 2. A Priori Contingent
|
9385
|
The very act of designating of an object with properties gives knowledge of a contingent truth [Kripke]
|
10. Modality / E. Possible worlds / 1. Possible Worlds / a. Possible worlds
|
4943
|
Instead of talking about possible worlds, we can always say "It is possible that.." [Kripke]
|
10. Modality / E. Possible worlds / 2. Nature of Possible Worlds / a. Nature of possible worlds
|
16983
|
Probability with dice uses possible worlds, abstractions which fictionally simplify things [Kripke]
|