Validity
Here you will find all the resources identified by our tutors as useful for the study of this topic, arranged in ascending alphabetical order. Browse the tiles and descriptions to discover if there are any resources of interest to you, or click on any of the other keywords to see resources sorted by alternative topics.
Displaying 1 - 10 of 10| Type | Title | Description | Keywords | Full details |
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Exercise 4, 6c (Additional Note 4) |
On the question whether every formula in a natural deduction needs to be used. |
Formal logic, Validity, natural deduction | view |
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Handout 11: Syllogistics IV |
Reduction to the first figure, rules for validity, test for validity with Venn diagrams. |
syllogism, Validity | view |
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Handout 11A: Validity for Syllogisms |
Further information about testing validity using modus Felapton. |
syllogism, Validity | view |
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Handout 16: Formal Fallacies |
A list of formal fallacies (PL, QL, syllogistics, modal logic) with examples. |
Formal logic, Validity, fallacies | view |
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Handout 1: Logic, the 'Art of Thinking' |
Introduction to the course. Remarks on validity. |
Formal logic, Validity | view |
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Handout 2: Arguments |
Handout about validity and soundness. |
Argument, Proposition, Validity | view |
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Handout 6: Propositional Logic III |
Testing validity with the semantical method. |
Validity, truth tables, Formal logic, tautology | view |
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Handout 7: Propositional Logic IV |
Testing validity with the syntactical method; natural deduction. |
Formal logic, Validity | view |
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Handout 8: Syllogistics I |
Limits of PL, categorical propositions, Venn diagrams. |
Validity, syllogism, categorical | view |
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Horseshoe and Turnstiles (Additional Note 2) |
Further background about the connection between material implication, logical consequence, and deducibility. |
Validity, Entailment, Consequence, Implication | view |
