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Five Dimension Theory
　Vol.1　Vol.2　Vol.3　Vol.4

Introduction of Minus Interest
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Five Dimension Theory
　Vol.1　Vol.2　Vol.3　Vol.4

Introduction of Minus Interest
　Rate

　There is imaginary unit i in mathematics.

　　 　i　×　i　＝　−1　

　It is the number defined as described above.
　Generally understandable number is real number. Origin of number was to clarify recognition in the first place. Understanding surrounding situation, it is no meaning to say “there are many things”. So, it may have been necessary to count one, two.
　It was highly developed and it may have led to modern mathematical theory.
　At this point, it is real number that is basic. It is number used to count. Real number squared is certainly plus.

　“Imaginary” is extremely opposite of real number. It is number that is minus by squaring.
　Traditionally, all of surrounding space has been thought to be composed of real number. So, it has not been understood why imaginary is significant in physics and mathematics.
　It was mysterious why imaginary had to been used though it did not exist in our world and why various theories could be expressed finely.
　But these can be understood by introduction of Five Dimension Theory.

　Our world is composed of two conscious processes. Therefore, “Five dimension” can’t be established without expressing it by use of some kind of mathematics.
　Imaginary unit i will express directionality of consciousness of Five Dimension Theory mathematically. Two directions exist in consciousness.
　Two directions exist in straight line. If one is defined as plus i direction, the other is minus i direction.

　　　　i　×　（−i）　＝　1

Therefore, real number exists on intersection of interactivity of consciousness. In short, all of what is called existence or real existence exists on intersection of two-way consciousness, and these can mathematically be expressed by use of imaginary unit.

　As described above, physical meaning of imaginary unit can be clarified by understanding “Five Dimension”. Traditionally, it was thought simply, “Existence should be expressed by real number”, but it is not true. It is right for real number to be expressed as multiplier of imaginary units. This is basic concept to introduce “Five Dimension” into scientific theory.