Combining Texts
Ideas for
'What is Logic?st1=Ian Hacking', 'works' and 'works'
expand these ideas
|
start again
|
choose
another area for these texts
display all the ideas for this combination of texts
5 ideas
5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives
11065
|
The inferential role of a logical constant constitutes its meaning [Gentzen, by Hanna]
|
11023
|
The logical connectives are 'defined' by their introduction rules [Gentzen]
|
11213
|
Each logical symbol has an 'introduction' rule to define it, and hence an 'elimination' rule [Gentzen]
|
13837
|
With a pure notion of truth and consequence, the meanings of connectives are fixed syntactically [Hacking]
|
5. Theory of Logic / E. Structures of Logic / 4. Variables in Logic
13839
|
Perhaps variables could be dispensed with, by arrows joining places in the scope of quantifiers [Hacking]
|