Combining Texts
Ideas for
'poems', 'The Principles of Mathematics' and 'In Praise of Philosophy'
expand these ideas
|
start again
|
choose
another area for these texts
display all the ideas for this combination of texts
4 ideas
5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / b. Basic connectives
14105
|
There seem to be eight or nine logical constants [Russell]
|
5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / c. not
18722
|
Negations are not just reversals of truth-value, since that can happen without negation [Wittgenstein on Russell]
|
5. Theory of Logic / E. Structures of Logic / 3. Constants in Logic
14104
|
Constants are absolutely definite and unambiguous [Russell]
|
5. Theory of Logic / E. Structures of Logic / 4. Variables in Logic
14114
|
Variables don't stand alone, but exist as parts of propositional functions [Russell]
|