What are the 4 fundamental laws of logic?

Answer 1

One of the primary principles of logic is the law of (non-) contradiction. Basically it states that no statement (proposition, assertion, etc.) can be both true and not true--false-

The second primary law of logic is the principle of excluded middle. The law of (non-)contradiction simply states that A cannot equal or be non-A

The third primary law of logic is called the law of identity. It states that A=A or that "if any statement is true, then it is true

The fourth primary law of logic is the law of logical or rational inference

These four primary laws of logic are vital--essential--to all coherent or intelligible discussions or arguments. As I hope is evident, one cannot--in any intelligent sense--not use them

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Answer 2

Laws Of Logic

Answer 3

4 fundamental laws logic

Answer 4

Rules Of Logic

Answer 5

The law of identity The law of non-contradiction The law of the excluded middle Murphy's law?

Answer 6

They are called the "Laws of Thought" or "Fundamental Principles in Logic"

1. Law of identity. Everything is what it is. A is A or A is Identical with A.

2. law of Contradiction. A cannot be A and not A at the same time.

3. Law of Exculded Midddle. A is either a or not A

4. Law of Sufficient Reason. There should be sufficeint reason to all happenings. (leibnitz)

Answer 7

By rule 1, p is a formula.
By rule 2, ¬p is a formula.
By rule 1, q is a formula.
By rule 3, (¬p ∨ q) is a formula.

Answer 8

SIMPLE,UNDERSTANDABLE,APPLIABLE,PRACTICABLE