# What is formal and informal logic?

Check our answers to ‘What is formal and informal logic?’ - we found 46 replies and comments relevant to this matter. The best answers are submitted by users of Yahoo! Answers, ChaCha and Quora.

## Best solution

• ### What's formal logic and nonformal logic?

what's formal logic and nonformal logic,and what's the difference beween them. can you take some examples to depict and demonstrate that? thanks

#### Answer:

Again, there are people on here just spitting out the first thing they think of. Obviously, the people...

## Other solutions

• ### What was the title of the cool series in which the mathematician Euclid organized and applied formal logic to geometry Euclid organized and applied formal logic to geometry?

#### Answer:

The title was called Elements, that made references to the geometry and other mathematics known in his...

• ### Formal Logic : ~((p -> q) -> q) |- ~p v (p -> q) What a complicated problem that i have to solve?

Formal Logic Natural Deduction

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1. ~((p -> q) -> q) ......... premise 2. ~((~p \/ q) -> q) ......... 1, material implication...

• ### What is formal logic and scientific reasoning?

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Formal logic, noun, is the study of the properties of propositions and deductive reasoning by abstraction...

• ### What are some examples of things that cannot be explained by logic?

In this very interesting blog post, http://apenwarr.ca/log/?m=201407#01 a point is made about how "smart" people, particularly "smart" computer people, have a tendency to rationalize the world. They believe that the correct answer...

#### Answer:

The Burmese bandit from The Dark Knight! Bruce Wayne: Criminals aren't complicated, Alfred. Just have...

• ### What are some examples in reality, mathematics, logical theory or any other areas that challenge logic as a reasoning tool? Please see question details before answering...

Edit 2 -- Apparently, someone still thinks I need to clarify my question some more. I hope this will make it clearer. The answer I am looking for, is like the answer William Oliver gave for a question similar to mine right here: William Oliver's answer...

#### Answer:

-Edit- the OP appears to have altered the question details... And again the details show lack of understanding...

• ### What is formal logic?

#### Answer:

Formal logic, noun, is the study of the properties of propositions and deductive reasoning by abstraction...

• ### What is logic and how does it work?

Here's my problem (which seems stupid and may or may not be stupid): I don't know what logic is. Or rather, I don't know why logic 'works'. Logic is the underlying principle behind everything, right? All our justifications are based on logic. Every time...

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Pardon me ahead of time for the lengthy and, at times, undoubtedly foolish words which follow. I hope...

• ### What would a college course on formal logic be like

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That depends on the professor! Formal logic is a set of rules for making deductions that seem self evident...

• ### What exactly is logic, and why does it have so many variations?

I've always been a logical person. If I ever made an argument it always had a reason and a logical point of view. My question is, is the type of logic I was taught, not really logic at all? I think I might have my whole life been confusing logic for...

#### Answer:

Logic is a pattern of reasoning, kind of a set of instructions or an algorithm to get a result. Since...