What is a logical fallacy?


All children would benefit from this. It’s a series of awareness about how people pull the wool over our eyes with logical fallacies. In other words they bluff us into thinking they are right…. Lets see. It’s a bit dry but brilliant.

All arguments have the same basic structure: A therefore B. They begin with one or more premises (A), which is a fact or assumption upon which the argument is based. They then apply a logical principle (therefore) to arrive at a conclusion (B). An example of a logical principle is that of equivalence. For example, if you begin with the premises that A=B and B=C, you can apply the logical principle of equivalence to conclude that A=C. A logical fallacy is a false or incorrect logical principle. An argument that is based upon a logical fallacy is therefore not valid. It is important to note that if the logic of an argument is valid then the conclusion must also be valid, which means that if the premises are all true then the conclusion must also be true. Valid logic applied to one or more false premises, however, leads to an invalid argument. Also, if an argument is not valid the conclusion may, by chance, still be true.

For a more thorough discussion of logical fallacies and how to structure a logical argument, see the rest of this article here