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A Calculus of Number Based on Spatial Forms - University of ...

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39<br />

Pro<str<strong>on</strong>g>of</str<strong>on</strong>g>.<br />

Rati<strong>on</strong>al numbers a; b 2 Q take the form a=([i]) and b=([k]);<br />

where i; k; j; l 2 I with j; l 6= . The product <str<strong>on</strong>g>of</str<strong>on</strong>g> these rati<strong>on</strong>als is also in Q because<br />

the product <str<strong>on</strong>g>of</str<strong>on</strong>g> a and b reduces to the rati<strong>on</strong>al ([m]); where m=([i][k]) and<br />

n=([j][l]):<br />

([ a ][ b ]) Given<br />

([([i])][([k])]) Replacement<br />

( [i] [k] ) Involuti<strong>on</strong><br />

( [i] [k] ) Inverse collecti<strong>on</strong><br />

([([i] [k])]) Involuti<strong>on</strong><br />

([ m ]) Replacement<br />

Since the product <str<strong>on</strong>g>of</str<strong>on</strong>g> two integers is an integer, both m and n are integers. Because<br />

j and l are n<strong>on</strong>-void, n is also n<strong>on</strong>-void. Therefore, ([m]) is rati<strong>on</strong>al and so<br />

the product <str<strong>on</strong>g>of</str<strong>on</strong>g> a and b is rati<strong>on</strong>al.<br />

Every element inQ, except for the void, has a multiplicative inverse.<br />

Pro<str<strong>on</strong>g>of</str<strong>on</strong>g>. Rati<strong>on</strong>al number a 2 Q takes the form a=([i]); where i; k 2 I with<br />

j 6= . Since a is n<strong>on</strong>-void, the numerator is also n<strong>on</strong>-void, i 6= . The multiplicative<br />

inverse <str<strong>on</strong>g>of</str<strong>on</strong>g> a, given by (); is rati<strong>on</strong>al by the following reducti<strong>on</strong> back to the<br />

rati<strong>on</strong>al form.<br />

()=()=()=([j])<br />

5.4.3 Divisi<strong>on</strong> by Zero<br />

Domini<strong>on</strong>, a2=2, loses informati<strong>on</strong> and necessitates excluding from the calculus.<br />

This restricti<strong>on</strong> prevents formati<strong>on</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> divisi<strong>on</strong> by zero, (): This restricti<strong>on</strong><br />

appears in standard and boundary numbers as:<br />

1=0 undened versus undened.<br />

5.4.4 Calculati<strong>on</strong><br />

Computing a divisi<strong>on</strong> requires a matching <str<strong>on</strong>g>of</str<strong>on</strong>g> quantities. When quantities cannot be<br />

matched, the fracti<strong>on</strong> does not reduce. Thus, the calculus c<strong>on</strong>strains this calculati<strong>on</strong><br />

but does not guide the reducti<strong>on</strong>.

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