User Speakpigeon

15 votes

7 answers

7k views

Is there a name for the fallacy whereby the other party to the debate only suggests, does not articulate, what their point is?

asked Mar 7, 2020 at 17:12

10 votes

7 answers

3k views

What did Russell mean when he wrote that the null-class, the class having no members, did not exist?

asked Feb 9, 2023 at 8:05

6 votes

8 answers

3k views

Infinite past with a beginning?

asked Apr 7, 2019 at 13:03

6 votes

2 answers

461 views

Who coined the use of the word "entailment" in the logical sense?

asked Apr 14 at 16:30

6 votes

3 answers

147 views

What is the first recorded use of the conditional form in human history?

asked Jun 28 at 7:38

5 votes

3 answers

2k views

What did Bertrand Russell mean exactly when he said that such that, while fundamental both to formal logic and to mathematics, is "undefinable"?

asked Jan 21 at 10:02

5 votes

4 answers

482 views

What characteristics define something as a mathematical entity?

asked Mar 5 at 9:25

5 votes

1 answer

232 views

What are the main interpretations offered so far of biscuit conditionals?

asked Mar 25 at 17:02

5 votes

1 answer

309 views

What were the historical interpretations of Aristotle's definition of validity/logical consequence?

asked Jan 31, 2019 at 15:49

4 votes

0 answers

385 views

Which rational thinkers (theologians, philosophers, scientists, mathematicians etc.), prior to 1850, disagreed with Aristotle's logic?

asked Jan 31, 2019 at 8:53

4 votes

5 answers

439 views

Where is the fallacy in Seth Yalcin's counterexample to the modus tollens?

asked Feb 17, 2020 at 12:54

4 votes

3 answers

185 views

What is wrong with this sort of proof?

asked Apr 8 at 7:06

4 votes

3 answers

176 views

What is the logic of the coordinating conjunction BUT?

asked Sep 13, 2023 at 8:33

4 votes

1 answer

242 views

Was Tarski the first to discuss the logically of the truth predicate?

asked Jul 11 at 8:15

3 votes

1 answer

75 views

Which author(s) first talked of Aristotle's syllogistic as a logic of terms?

asked Apr 16 at 9:29

3 votes

6 answers

1k views

Who ever argued that natural languages have an exact logic?

asked Sep 5, 2023 at 16:04

3 votes

5 answers

300 views

At what point in the history of mathematics, and why, did mathematicians come to say "A implies B" to mean "not A or B"?

asked Apr 9 at 11:22

3 votes

1 answer

140 views

What are the arguments of philosophers against the reasoning which justifies the horseshoe from truth-functionality?

asked May 18, 2023 at 9:52

2 votes

1 answer

117 views

Does a definite description such as "the train" or "the student" always signal uniqueness of the referent?

asked Feb 25, 2023 at 9:16

2 votes

2 answers

112 views

Which logicians before the 19th century adopted the logical operation ¬P ∨ Q as best model of the truth conditions of the conditional?

asked Oct 28, 2022 at 8:56

2 votes

3 answers

580 views

Any concrete, real life example of Peirce's Law? [closed]

asked Jul 6, 2020 at 17:08

2 votes

6 answers

1k views

Is it true that no philosopher disagrees that everything exists?

asked Feb 22 at 7:48

2 votes

3 answers

309 views

What is meant by the expression ∃xHx, if H stands here for “is a human being”?

asked Feb 24 at 17:44

2 votes

0 answers

139 views

Why not just give up on the idea of truth-functionality?

asked Apr 16 at 9:49

2 votes

1 answer

60 views

All syllogism is addressed to that within the soul: Did Aristotle really said that?

asked Apr 19 at 8:51

2 votes

0 answers

52 views

Any consensus on Łukasiewicz' idea that Aristotle's syllogisms were systematically misrepresented in the academic literature?

asked May 9 at 6:52

2 votes

3 answers

240 views

Which paradoxes are regarded as logical paradoxes?

asked Mar 25 at 7:34

2 votes

0 answers

49 views

What did Bradley mean that it "may be true" that all trespassers will be prosecuted?

asked May 26 at 16:29

2 votes

0 answers

87 views

What philosophers have to say as to what logic is and why it exists?

asked Aug 13 at 13:53

2 votes

3 answers

116 views

Which text of which philosopher marks the start of the Enlightenment?

asked Aug 29 at 15:54

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71 Questions

Is there a name for the fallacy whereby the other party to the debate only suggests, does not articulate, what their point is?

What did Russell mean when he wrote that the null-class, the class having no members, did not exist?

Infinite past with a beginning?

Who coined the use of the word "entailment" in the logical sense?

What is the first recorded use of the conditional form in human history?

What did Bertrand Russell mean exactly when he said that such that, while fundamental both to formal logic and to mathematics, is "undefinable"?

What characteristics define something as a mathematical entity?

What are the main interpretations offered so far of biscuit conditionals?

What were the historical interpretations of Aristotle's definition of validity/logical consequence?

Which rational thinkers (theologians, philosophers, scientists, mathematicians etc.), prior to 1850, disagreed with Aristotle's logic?

Where is the fallacy in Seth Yalcin's counterexample to the modus tollens?

What is wrong with this sort of proof?

What is the logic of the coordinating conjunction BUT?

Was Tarski the first to discuss the logically of the truth predicate?

Which author(s) first talked of Aristotle's syllogistic as a logic of terms?

Who ever argued that natural languages have an exact logic?

At what point in the history of mathematics, and why, did mathematicians come to say "A implies B" to mean "not A or B"?

What are the arguments of philosophers against the reasoning which justifies the horseshoe from truth-functionality?

Does a definite description such as "the train" or "the student" always signal uniqueness of the referent?

Which logicians before the 19th century adopted the logical operation ¬P ∨ Q as best model of the truth conditions of the conditional?

Any concrete, real life example of Peirce's Law? [closed]

Is it true that no philosopher disagrees that everything exists?

What is meant by the expression ∃xHx, if H stands here for “is a human being”?

Why not just give up on the idea of truth-functionality?

All syllogism is addressed to that within the soul: Did Aristotle really said that?

Any consensus on Łukasiewicz' idea that Aristotle's syllogisms were systematically misrepresented in the academic literature?

Which paradoxes are regarded as logical paradoxes?

What did Bradley mean that it "may be true" that all trespassers will be prosecuted?

What philosophers have to say as to what logic is and why it exists?

Which text of which philosopher marks the start of the Enlightenment?