Tag: validity

168 Is 'guns don't kill people, people kill people' a good argument? 2014-04-25T13:47:51.200

23 Can an argument be valid even though one of its premises is false? 2018-05-08T11:17:54.090

11 Does the Scientific Method of research apply to philosophy? 2011-06-08T08:05:10.110

11 Are there philosophical theories that are either confirmed or refuted by the majority of experts? 2015-10-07T08:46:39.887

10 Is Marx's model of capitalist society no longer valid? 2014-06-25T23:19:17.950

7 On the Validity of Modus Tollens 2014-03-01T03:52:41.047

7 What is the difference between mathematical reasoning and philosophical reasoning? 2015-01-19T02:15:36.747

7 Why is Tarski's notion of logical validity preferred to deductive one? 2015-07-09T02:08:08.617

6 What fallacy dismisses a conclusion because supporters give invalid arguments for it? 2016-02-19T22:05:52.510

6 What is the nature of "validity" in deduction when dealing with conclusions unrelated to premises? 2018-03-05T20:25:45.583

5 Are "All A is B" and "If A then B" always logically equivalent? 2017-06-09T00:54:29.550

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

4 Is Vallicella's argument that the future tense cannot generate the Liar paradox valid? 2011-08-25T07:20:29.660

4 What is the logical form of the definition of validity? 2014-10-09T23:29:01.677

4 How to find redundant premises? 2015-08-31T21:29:19.787

4 Validity of an argument with a contradictory conclusion 2015-11-07T12:55:56.720

4 Does this philosophical argument about accidents and universal origin contain valid logical structure? 2016-04-18T01:31:38.480

4 Reverse Conclusion of Hypothetical Syllogism 2017-09-23T00:37:19.707

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

3 Argument where premises cannot all be true 2014-04-18T03:14:56.367

3 How to point out argumentation fallacy in "real life" 2014-05-01T13:10:34.643

3 Could the assumption of materialism be a flaw in the scientific method? 2014-07-08T08:36:44.633

3 Testing the validity of syllogism argument 2014-09-30T22:32:35.257

3 How can one measure the quality of art? 2015-02-01T07:08:57.547

3 Why are some communication failures regarded as important opinions in philosophy? 2015-05-11T16:04:31.710

3 Are all fallacious arguments invalid? 2018-05-19T13:45:47.323

3 Is "(1) All humans are mortal. (2) Socrates is mortal. Conclusion: Socrates is human." unsound argument? 2018-09-29T20:25:24.533

3 valid or invalid: “S or R. Not S and Not R. Ergo, B.” 2019-02-09T02:47:45.543

3 Analogy between an unknown in an argument, and a contradiction in the principle of explosion 2019-06-08T12:15:19.190

2 Question regarding sound argument 2014-10-27T21:49:19.207

2 soundness: how can one decide\know if premise is true or false 2014-11-11T16:19:21.837

2 If all the premises of an argument are true, is the argument logically valid? 2015-01-09T22:28:19.663

2 Contradictory Conclusions - Both cannot be valid 2015-03-24T22:47:42.617

2 Suppose the conclusion of an argument is logically equivalent to the conjunction of all the argument’s premises 2015-04-21T00:18:54.420

2 Suppose you know the premises of an argument are inconsistent. Do you have to do a truth table to know whether it is valid or invalid? 2015-04-21T00:55:16.933

2 Is this lexical or structural ambiguity: "criminal actions are illegal, and murder trials are criminal actions, so murder trials are illegal"? 2015-04-29T03:39:22.280

2 Changing inconsistent to valid 2015-08-27T07:42:13.480

2 Is the logic of this argument valid? 2016-05-23T08:05:02.887

2 Soundness of a deductive argument 2017-05-01T07:50:46.810

2 Tautologies and Quantification 2017-05-26T16:07:49.530

2 In basic logic, if an argument contains a self-contradictory premise, how come the argument is valid? 2017-09-28T17:12:30.307

2 Can p and q in modus tollens be stated negatively? 2017-10-07T22:50:27.300

2 Are valid arguments content blind? 2017-10-10T16:14:06.487

2 Question about validity of Modus Tollens vs. Denying the Antecedent 2017-10-19T07:15:15.850

2 Is it possible to define argument validity as a formula? 2018-08-30T01:21:44.660

2 ‘The claim that I had an affair with Miss A and that I didn’t father her child is false’ 2018-10-13T18:20:29.533

2 Is this argument about abortion being both right and wrong valid or invalid? 2019-02-04T00:42:21.450

2 Why is there an O type conclusion in modus celaront 2019-07-13T14:11:05.570

2 Counterfactuals in Premises for Arguments 2020-07-08T03:12:37.937

2 Are there multiple definitions of validity? 2020-07-31T11:25:22.457

2 Valid or invalid? ( from a CSU Exam, instructor Tim Black) 2020-12-06T09:58:02.137

1 Structural understanding vs. emotional connection 2011-09-18T14:49:10.150

1 formula which is k-valid for only k > 2 2013-11-22T06:33:19.917

1 Proof validity methods other than truth tables 2014-10-27T19:29:21.407

1 Suppose the conclusion of an argument is known to be tautologous. Do you have to do a truth table to know whether it is valid or invalid? 2015-04-21T00:45:01.037

1 Determining the soundness of arguments 2015-04-26T08:55:19.123

1 Validity and Soundness 2015-04-29T04:56:54.320

1 Can an argument be valid if one of its premises is invalid? 2016-01-03T19:09:04.700

1 How to infer ¬Q when there seems to be no way to 2016-07-21T04:14:44.347

1 Not sure if my logical equivalences are correct here or not 2016-09-09T06:36:59.727

1 What is a faster method other than truth tables for validating a sentence? 2016-09-28T03:56:40.870

1 Can you make a valid inference invalid by adding extra premises? 2017-06-03T11:38:14.610

1 Determine if an argument is valid or invalid 2018-01-29T22:05:45.740

1 Why is Truth the default designated value in logic and language? 2018-04-22T16:53:15.790

1 Can a priori reconsideration improve on a priori theory? "Analytical" etc. schools 2018-05-08T10:47:39.923

1 How do I prove: 1. A v (B & C) 2. (A v C) > ~(G & O) / ~G v ~O 2018-05-16T19:24:57.177

1 Is this argument about "either or" valid or invalid? 2019-02-09T04:16:34.663

1 I need some help determining the validity of the following argument 2019-02-19T08:21:40.380

1 Is the following statement true, false, or can't be determined? Why? 2019-02-19T15:28:58.853

1 Is this argument about ownership valid? 2019-02-21T05:54:09.310

1 What is an argument with necessarily true conclusion? 2019-06-25T08:18:45.960

1 Is this an argument by simplification: it can be done by doing Y, therefore it can be done? 2019-10-20T02:16:38.273

1 Modal Logic: Proving Schema Validity 2019-11-10T17:11:38.480

1 can an argument containing a contradiction be valid argument 2020-08-07T16:01:25.283

1 Is it true that if an argument is invalid, any argument of that logical form must be invalid? 2020-08-22T17:50:48.907

1 Question of Validity in syllogisms of deductive argument 2020-12-08T11:15:26.510

0 Valid and invalid arguments 2014-02-01T17:30:51.037

0 Is it possible to determine the soundness of the following argument? 2015-03-29T04:45:42.430

0 Why must the sentence form of a valid argument be tautological? 2016-02-01T06:08:44.773

0 In the context of debate centred on a statement, how to validate arguments given to confirm or disconfirm that statement in a logical manner? 2016-09-09T06:40:23.353

0 Logical analysis of "Free will and god(s)" argument 2016-10-26T12:08:51.517

0 Can an Argument be ever a hypothesis? 2016-12-06T08:05:26.620

0 Is it valid to prove the axioms of a system from themselves? How does it square with Gödel's incompleteness? 2017-04-28T01:08:39.160

0 What are the Limitations and Vulnerabilities of Objectivity Biases? 2017-08-15T23:38:16.173

0 Is university research a guarantee for accuracy of theory? 2018-04-02T15:28:55.013

0 Are these basic arguments considered valid and sound? 2018-04-11T13:01:49.323

0 Arguments/premises to disprove God's omniscience 2018-12-22T21:27:42.810

0 Modal Logic: Why are Universal frames a subset of Equivalence frames? 2019-09-20T21:39:09.463

0 In logic, can we or can we not prove that a formula is invalid? 2020-06-25T09:03:20.927

0 Is it a valid argument? 2020-10-15T06:04:09.647

0 How can we prove this argument is invalid? 2020-10-15T07:49:48.540