Fallacies, Episode II: The Use and Abuse of Evidence

In episode I, you learned about logical fallacies that represent mistakes in moving from our premises to our conclusions, due to bad logical form. But even if we’re careful to support our conclusions with reasoning and evidence, we can often run into problems with the evidence itself. “Facts” are supposed to be objective — but facts need to be interpreted, and this process is often subjective.

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For that reason, evidence can often mislead and confuse. Have we interpreted it correctly? Do we have enough context to understand what it really indicates?

As consumers of media, we need to be aware of how frequently the supposed “evidence” that supports a claim can be misinterpreted and misused.

As thinkers and writers, we must make sure that we always consider source and context to ensure that we are using evidence appropriately.

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Fallacies, Episode I: Bad Form

Many mistakes in logic occur due to problems with our premises – the information or assumptions we use as our starting point when we begin to reason. But some are down to the way we put those premises together to draw conclusions – that is, they occur because we use bad logical form.

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Learn more about logical form.

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Logical Fallacies Exposed

Logical fallacies are examples of fallacious, or faulty, arguments. At best, they represent flawed reasoning—making claims that are not supported by reasons or warrants, or drawing conclusions that don’t match up to the information you have. At worst, they can be deliberate attempts to mislead or confuse someone, to persuade through providing misinformation, usually to serve some hidden agenda. Many of the logical fallacies we will examine are common mistakes we all make, but some of them are established propaganda techniques.

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Best Life Hack | Logical Reasoning

Reasoning, in its most fundamental sense, is the process by which we take bits of information and knowledge that we already have, and compare or combine them to generate new knowledge. It describes our ability to move from what we know to what we don’t know.

We do this by drawing conclusions from a set of premises – things we already know (or believe) to be true. The way we combine the premises to produce a conclusion is called an argument. The goal is to construct a sound argument so that we draw conclusions in such a way that they are guaranteed – or at least very likely – to be true. We want to come to the right conclusions, but this can be tricky.

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