# What Is Qed Math?

Author: Loyd
Published: 27 Nov 2021

### Quod erat demonstrandum in Latin

The Latin phrase quod erat demonstrandum means "which was to be demonstrated" and is an initialism of Q.E.D. It states what was to be shown. The abbreviation is placed at the end of mathematical proof and philosophical arguments in print publications to indicate that the proof is complete.

The beginning and end of proofs have been demarcated by mathematicians since the time of Euclid. The formal statements of the lemmas and theorems are set in italics in printed English language texts. The beginning of a proof usually follows immediately afterwards, and is indicated by the word "proof" in boldface or italics.

### The Q.Ed symbol

QED is an abbreviation of the Latin words "Quod Erat Demonstrandum" which means "that which was to be demonstrated". It is placed at the end of a proof to show that it is complete. Q.E.D. is not used in modern mathematical texts.

The use of a black square at the end of a proof as a Q.E.D symbol is not universal, but it has become standard. If an election is null and void, it is not valid. The agreement was declared null and void.

null and void are different from nothing in that they are in physical space. A void is not a thing but a space. You could measure a void but not a null one.

### The Theory of Complex Numbers

QED has been used as a template for all subsequent quantum field theories. The present form of quantum chromodynamics was achieved in the 1970s by H. David Politzer, Sidney Coleman, David Gross and Frank Wilczek. The work of Schwinger, Gerald Guralnik, Dick Hagen, and Tom Kibble were the first to show weak nuclear force and quantum electro could be shown independently.

The rules for adding or multiplying are the same. You add or multiply probabilities instead of adding or subtracting probability amplitudes that are complex numbers. The theory of complex numbers includes addition and multiplication.

The sum is found in the following order. The start of the second arrow should be at the end of the first. The sum is a third arrow that goes from the beginning of the first to the end of the second.

The length of an arrow is the product of two lengths. A quantum field theory can be considered viable if it is normalizability. All theories describing fundamental interactions are renormalizable.

### Formal Proofs

A formal proof a statement is a sequence of steps that link the hypotheses of the statement to the conclusion of the statement using only deductive reasoning. The conclusion and hypotheses are usually stated in a general way.

### The QED Project

The title of the project is QED, which means "build a computer system that effectively represents all important mathematical knowledge and techniques." The QED system will be in compliance with the highest standards of mathematical rigor, including the use of strict formality in the internal representation of knowledge and the use of mechanical methods to check the correctness of all entries. The whole point of a formal system is to reduce the complexity of notions.

Any proof is dependent on a system of axioms and rules of inference. It would appear that proof in X could be translated to Y, if you first prove that each axiom of system Y is a theorem in X, and then prove that each theorem derived from an inference rule in Y is a theorem in X. The little theories school of thought says that it's not important that all the proof share the same ground system.

### Reference work and marker: two types of reference works

Some books are text-books. A reference work is a good one for a researcher who is looking for a specific idea or idea, and a marker is a good one for jumping down the page in blocks.

### Quod erat demonstrandum: A New Language for QED

QED is the first and simplest physical gauge theory. The gauge group of theory is formed by the set of possible gauge transformations of the entire configuration. The latin phrase " quod erat demonstrandum", which is used at the end of math proof or a philosophy argument, is the QED that they didn't know how to translate. A nerd like Bakugo.

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