Deepstash brings you key ideas from the most inspiring articles like this one:

Read more efficiently

Save what inspires you

Remember anything

Good Reasons to Study Logic

Good Reasons to Study Logic
Learn about the benefits of taking a logic class or studying it yourself, even if you're not a philosophy major.


Key Ideas

Save all ideas

Studying Logic

Studying Logic

Logic is a science of correct reasoning while making inferences.

Even if one is not into philosophy, studying logic is a good way to learn argument analysis and understand the world around us in a clear, linear way.


1.31k READS


Symbolic Logic

Symbolic logic is akin to learning a new language, which we can use to analyse the logic of statements or validate arguments.

It can even be used to construct proofs for complex arguments, where it is not easy to validate right away.



Logic In Validating Arguments

If we train ourselves to construct complex arguments and are able to spot the weak ones, we can move towards what is authentic and avoid the traps.

Being able to study internal reasoning is a useful skill in any field.



Logic: An Effective Persuasion Tool

Though many people get persuaded by identity rather than logic, it is still a good way to persuade the right kind of audience.

Good arguments can win the day where people are making a choice based on logic and merit, and are not persuaded by hyperbole, rhetoric or emotional appeals.



Logic: The Foundational Discipline

  • In any field, logic is the foundational discipline.
  • The logic of Aristotle or the modern symbolic logic are shining examples of the merit of this system.
  • It is widely used in mathematics, philosophy and computer science.



Fallacious Thinking

Many politicians, advertisers and corporate spokespersons use propaganda, exaggeration, misdirection and selective lying to promote their agendas and mislead the public.

The strongly visual and persuasive techniques are sometimes effective but hold no ground when they are studied with logical reasoning. A clear logical mind which cuts through the noise is more crucial than ever before.




Convince Them With Confidence

  • Speak confidently, be concise, and try not to repeat yourself. 
  • Give the appearance that you truly know what’s right from the beginning, even if you don’t have all o...

Avoid Common Argument Fallacies

Winning an argument often comes down to who can go the longest without contradicting themselves and keeping sound logic, not direct persuasion of the other party.

Anecdotal Fallacy

Using a single personal experience as the foundation of your argument or your big piece of evidence. 

For example, your phone may have broken right after you bought it, but you can’t use that to argue that those phones are not worth the purchase for others.

13 more ideas

The Gish gallop

The Gish gallop

It is a rhetorical technique that involves overwhelming your opponent with numerous vague arguments, with no regard for accuracy, validity, or relevance of those arguments.

Examples of Gish gallops

A classic example is when a proponent of some pseudoscience bombards an expert with many weak arguments and start a new argument each time the expert successfully refute one of them.

But Gish gallops also appear in less formal contexts. E.g., someone who wants to support an unfounded stance on social media might post a huge list of irrelevant sources that they didn't actually read.

Arguments within a Gish gallop

When responding to specific arguments within a Gish gallop, you can use certain techniques to respond effectively to the flawed arguments.

  • When someone states there is support for their stance, you can ask your opponent to list the specific evidence they claim support their view.
  • When responding to generalised claims, show that they contradict the scientific consensus on the topic.

Cherry picking

It is a logical fallacy and it happens when we choose and focus only on evidence that supports our views and arguments while ignoring anything that may contradict us.

The problem with cherry picking

  • It fails to take into consideration all the available information
  • It presents information in a misleading way.
  • It might lead to improper analysis and might cause someone to paint a misleading picture of a certain outcome.

The principle of total evidence

Also referred to as Bernoulli’s maxim, it states that, when assessing the probability that a certain hypothesis is true, we must take into account all the available information.