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| <math>\texttt{uv} \cdot \texttt{(du, dv)} ~+~ \texttt{u(v)} \cdot \texttt{(du, dv)} ~+~ \texttt{(u)v} \cdot \texttt{(du, dv)} ~+~ \texttt{(u)(v)} \cdot \texttt{(du, dv)}</math>
 
| <math>\texttt{uv} \cdot \texttt{(du, dv)} ~+~ \texttt{u(v)} \cdot \texttt{(du, dv)} ~+~ \texttt{(u)v} \cdot \texttt{(du, dv)} ~+~ \texttt{(u)(v)} \cdot \texttt{(du, dv)}</math>
 
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|}
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<math>\operatorname{D}g</math> tells you what you would have to do, from where you are in the universe <math>[u, v],\!</math> if you want to bring about a change in the value of <math>g,\!</math> that is, if you want to get to a place where the value of <math>g\!</math> is different from what it is where you are.  In the present case, where the ruling proposition <math>g\!</math> is <math>\texttt{((u, v))},</math> the term <math>\texttt{uv} \cdot \texttt{(du, dv)}</math> of <math>\operatorname{D}g</math> tells you this:  If <math>u\!</math> and <math>v\!</math> are both true where you are, then you would have to change one or the other but not both of <math>u\!</math> and <math>v\!</math> in order to reach a place where the value of <math>g\!</math> is different from what it is where you are.
    
<pre>
 
<pre>
Dg tells you what you would have to do, from where you are in the
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universe [u, v], if you want to bring about a change in the value
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of g, that is, if you want to get to a place where the value of g
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is different from what it is where you are.  In the present case,
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where the ruling proposition g is ((u, v)), the term uv (du, dv)
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of Dg tells you this:  If u and v are both true where you are,
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then you would have to change one or the other but not both
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u and v in order to reach a place where the value of g is
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different from what it is where you are.
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Figure 2.4 approximates Dg in the proxy of the linear proposition
 
Figure 2.4 approximates Dg in the proxy of the linear proposition
 
dg = uv (du, dv) + u(v)(du, dv) + (u)v (du, dv) + (u)(v) (du, dv).
 
dg = uv (du, dv) + u(v)(du, dv) + (u)v (du, dv) + (u)(v) (du, dv).
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