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Subjects>Math>Math & Arithmetic

What is the difference between a formal and an informal proof?

Anonymous

∙ 14y ago

Updated: 9/28/2023

When you give reasons that something is true, but don't necessarily lay it out step-by-step, this is an informal proof. A formal proof, on the other hand, shows step-by-step statements with reasons given for each step.

Wiki User

∙ 14y ago

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Continue Learning about Math & Arithmetic

Parts of formal proof of theorem?

Parts of formal proof of theorem?

How do you do proofs?

A proof is a very abstract thing. You can write a formal proof or an informal proof. An example of a formal proof is a paragraph proof. In a paragraph proof you use a lot of deductive reasoning. So in a paragraph you would explain why something can be done using postulates, theorems, definitions and properties. An example of an informal proof is a two-column proof. In a two-column proof you have two columns. One is labeled Statements and the other is labeled Reasons. On the statements side you write the steps you would use to prove or solve the problem and on the "reasons" side you explain your statement with a theorem, definition, postulate or property. Proofs are very difficult. You may want to consult a math teacher for help.

What is the difference between proof and postulate?

A proof uses postulates and theorems to prove some statement.

What is the difference between a flow proof and a two column proof?

flow proof is just run of text 2 colmn has line/column breaks

What is the difference between a proof coin and a circulation coin?

A proof coin has a special shiny finish on it and it is made to be sold to collectors, and not used as money.

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