33 If I said I had $100 when asked, but I actually had $200, would I be lying by omission? 2019-08-26T18:14:14.443

17 What is the difference between Law of Excluded Middle and Principle of Bivalence? 2012-07-10T21:42:02.837

17 Is Logic Empirical? 2016-09-10T05:22:01.640

17 Why did the mid-19th century and earlier thinkers fixate on one-place predicates? 2020-09-15T20:20:09.673

15 What is the philosophical ground for distinguishing logic and mathematics? 2016-05-09T21:01:53.613

15 What are the current topics in philosophy of logic? 2016-08-11T01:00:59.850

14 Why is it that the statement "All goblins are yellow" does not contradict the statement "All goblins are pink?" 2020-08-11T12:22:15.213

13 Why are there two fundamental laws of logic? 2019-09-19T20:06:24.127

12 What is the axiom of reducibility? And what philosophical controversies did it incite? 2016-08-14T01:14:29.570

12 How come intuitive thinking is related to constructing a proof? 2017-01-01T09:26:26.807

12 Why did we define vacuous statements as true rather than false? 2017-07-01T23:31:04.663

12 If you used intuitionistic logic in real life, would you not sound absurd? 2020-09-18T05:35:56.877

11 Do premises need to be valid conclusions themselves? 2018-08-02T17:25:23.997

10 How do we separate rules of logic from non-logical constraints? 2019-06-26T08:09:14.133

9 A Question Regarding Russell's Paradox 2012-11-22T07:33:28.117

9 Why don't we have consensus in more complicated areas of logic? 2014-04-25T15:41:11.987

9 What exactly is informal logic and is this what I'm looking for? 2014-08-10T18:23:35.440

9 Why isn't Cantor's diagonal argument just a paradox? 2014-08-23T11:18:07.780

9 What are the differences between philosophies presupposing one Logic versus many logics? 2016-08-15T21:50:15.603

8 Introductory book on philosophy of logic? 2015-12-10T18:33:58.440

8 Does the Fallacy Fallacy make logic useless? 2016-12-04T03:21:24.213

8 Logic and Computation: a philosophical viewpoint on Curry-Howard isomorphism 2017-05-08T11:03:49.517

8 What is the difference between the "is" of predication and the "is" of identity? 2018-10-07T17:06:03.707

8 What are the philosophical implications of using inconsistent mathematics? 2018-11-12T23:41:52.100

7 What is the origin of the truth table in logic? 2016-06-08T15:02:16.603

7 In predicate logic, do we necessarily have to restrict the domain of discourse? 2017-10-05T10:17:11.023

7 Are the "laws" of deductive logic empirically verifiable? 2019-02-20T00:25:30.250

7 What is the difference between 'accidental' and 'contingent'? 2019-10-20T05:30:23.617

6 Is there any reason for the heavy focus on binary relations in formal logic? 2014-08-18T18:42:31.497

6 What does Russell mean by "term" in Principles of Mathematics? 2015-12-25T22:01:31.743

6 What is the explicit reasoning behind proof by contradiction? 2016-06-02T03:20:31.977

6 Can you list examples of problems that can not be solved within a formal system but human beings have solved through construction or creativity? 2017-01-10T06:57:18.110

6 Is finding truth possible? 2017-01-14T09:59:02.777

6 Do logically incoherent statements still have meaning? 2017-07-21T20:47:34.503

6 How could mathematics and logic exist without us, if they are concepts created by us independent of reality? 2018-01-18T10:51:29.357

6 How is the nature of logical principles commonly defined in contemporary philosophy? 2019-02-09T15:37:26.247

6 What exactly is a first-order logic? 2019-06-15T06:04:00.673

6 Can animals follow logical rules of inference? 2020-07-02T10:48:55.293

5 Tractatus 3.333 and Russell's paradox 2014-04-12T20:48:38.437

5 What is the difference between Aristotle's theory of categories and Russell's theory of types? 2015-01-13T22:22:06.003

5 Logic and presentation 2015-01-25T08:36:36.797

5 A proposition is non-falsifiable. So what? 2015-04-03T02:52:08.533

5 Are there any strong reasons to still consider logical monism or a "One True Logic" in light of all the non-classical logics that have been developed? 2015-07-29T13:13:16.270

5 Proof that deduction is valid in all possible realities? 2015-08-18T19:39:40.757

5 Exactly what was Wittgenstein's argument against identity? 2015-11-15T02:37:10.443

5 What does the term "mathematical logic" mean? 2016-05-18T17:45:39.997

5 What does the truth-value of a material implication represent? 2016-06-19T00:20:50.103

5 What distinction is there between logic, philosophy of logic and philosophical logic? 2016-07-12T19:55:36.103

5 Is Modal Logic Logic? 2016-10-24T10:02:21.433

5 What are lucid examples of non-truth functionals? 2017-07-03T04:31:32.853

5 Is there a generally agreed upon solution to Bradley's Infinite Regress without appeal to Paraconsistent Logic? 2019-09-15T12:28:09.130

5 Is there a difference between equality and identity? 2019-09-20T21:12:53.870

5 What philosophical axes did 19th century mathematicians have to grind? 2019-10-01T14:29:58.593

5 Can/Do there exist any quantifiers other than "there exists" and "for all"? 2020-01-02T21:27:52.090

5 Where is the fallacy in Seth Yalcin's counterexample to the modus tollens? 2020-02-17T12:54:21.040

4 Can knowledge about argumentation be sufficient for philosophical logic without too symbolic or mathematical concepts? 2012-09-30T17:15:37.553

4 What is the role of common sense in logic? 2014-05-17T17:34:55.293

4 Is there a school of informal logic that treats it as determining how to transcribe arguments into formal logic? 2014-09-07T20:08:12.293

4 How to start studying philosophical logic? 2014-10-30T18:58:28.570

4 What is the most famous book on philosophical logic? 2015-12-16T16:37:48.777

4 P <=> (Q v R), P, -Q⊢R Propositional Logic Question 2016-10-28T00:33:26.403

4 Is there anyone who believes that all modal statements are meaningless or trivial? 2016-11-15T04:24:56.217

4 Prerequisites for Michael Dummett texts 2017-03-14T00:27:32.373

4 References for the Realism/Anti-Realism debate in Logic 2017-03-14T00:40:36.603

4 Can 2 logical deductions starting from 2 different and independent sets of assumptions lead to 2 contradictory conclusions? 2017-12-08T00:06:29.000

4 Does computer science have an impact on Philosophy? 2018-01-13T20:31:47.377

4 If the premises of an argument CANNOT all be true, then said argument is valid 2018-02-28T02:23:56.293

4 What, at present, are the major unsolved problems of logic? 2018-04-24T12:34:48.593

4 Is there an English language example where modus tollens is valid but contraposition is not valid? 2018-08-29T16:04:25.560

4 How much the world is logical 2019-01-15T20:18:26.700

4 What were the historical interpretations of Aristotle's definition of validity/logical consequence? 2019-01-31T15:49:14.067

4 Why is it argued that an argument has one and only one conclusion? 2019-08-24T17:20:04.350

4 Is there any exception that proves or suggests that the law of excluded middle does not always apply? 2019-09-20T14:42:51.223

4 What are the advantages of Aristotle's term logic over predicate logic? 2020-09-10T02:08:47.363

3 Are there paradoxes involved in allowing for an unrestricted domain in predicate logic? 2013-10-10T05:48:11.480

3 The Truth-Falsehood Dichotomy and Logic 2014-07-01T13:43:03.473

3 Does a statement exist which is its own proof? 2014-11-29T03:07:37.293

3 Looking for references for some remark of Quine's 2015-07-09T21:29:41.173

3 Is there a logic of married bachelors? 2016-02-08T16:40:52.970

3 What is the notion of a proof of a proposition for Martin-Löf? 2016-03-03T06:02:24.647

3 What are some books on the foundations of logic and its philosophy? 2016-03-04T14:08:51.527

3 Phenomenology of abstraction 2016-03-27T20:00:39.677

3 What questions or areas in the foundations of mathematics remain active research fields? 2016-05-11T13:04:56.350

3 Can one be a Modal Realist without also having to incorporate the existence of impossible worlds? 2016-05-23T14:59:01.347

3 Is this proposition analytic or synthetic? 2016-08-16T00:46:09.967

3 What book recommendations for learning Hegel and Wittgenstein? 2016-12-14T00:03:44.220

3 Getting started with reading papers in (philosophical) logic 2017-09-10T10:26:27.140

3 What is the difference between a logical truth and a tautology? 2017-10-16T20:34:54.613

3 Are all Informal Logic really just Formal Logic in disguise? 2017-11-20T06:18:36.930

3 What do we mean when we say there's only one type of logic/mathematics and that they can’t change? 2018-01-18T00:10:47.950

3 On Putnam's belief that we can choose a logic system based on the task at hand 2018-05-06T18:04:49.737

3 What is the relationship between "truth" and logic? 2018-08-08T17:35:44.043

3 Can paraconsistent or other logics make the impossible happen? 2018-08-23T20:14:57.413

3 Concept Formation 2018-09-25T15:12:11.727

3 What does predicative mean? 2018-10-14T19:18:23.857

3 Which rational thinkers (theologians, philosophers, scientists, mathematicians etc.), prior to 1850, disagreed with Aristotle's logic? 2019-01-31T08:53:26.430

3 Given the principle of innocence, how shall we explain logic's usefulness? 2019-03-11T23:17:17.680

3 Understanding Hintikka's scandal of deduction (as depicted by D'Agostino) 2019-05-06T21:31:27.503

3 Can classical logic have deduction with infinite steps 2019-05-26T13:52:34.417