Combining Texts
Ideas for
'fragments/reports', 'Epistemic Operators' and 'Introducing the Philosophy of Mathematics'
expand these ideas
|
start again
|
choose
another area for these texts
display all the ideas for this combination of texts
8 ideas
4. Formal Logic / B. Propositional Logic PL / 3. Truth Tables
8713
|
In classical/realist logic the connectives are defined by truth-tables [Friend]
|
4. Formal Logic / E. Nonclassical Logics / 2. Intuitionist Logic
8708
|
Double negation elimination is not valid in intuitionist logic [Friend]
|
4. Formal Logic / E. Nonclassical Logics / 6. Free Logic
8694
|
Free logic was developed for fictional or non-existent objects [Friend]
|
4. Formal Logic / F. Set Theory ST / 2. Mechanics of Set Theory / b. Terminology of ST
8665
|
A 'proper subset' of A contains only members of A, but not all of them [Friend]
|
8672
|
A 'powerset' is all the subsets of a set [Friend]
|
4. Formal Logic / F. Set Theory ST / 3. Types of Set / b. Empty (Null) Set
8677
|
Set theory makes a minimum ontological claim, that the empty set exists [Friend]
|
4. Formal Logic / F. Set Theory ST / 3. Types of Set / d. Infinite Sets
8666
|
Infinite sets correspond one-to-one with a subset [Friend]
|
4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / a. Axioms for sets
8682
|
Major set theories differ in their axioms, and also over the additional axioms of choice and infinity [Friend]
|