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MyWikiBiz, Author Your Legacy — Saturday January 04, 2025
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{| align="center" cellpadding="0" cellspacing="0" style="border-left:1px solid black; border-top:1px solid black; border-right:1px solid black; border-bottom:1px solid black" width="90%"
Evaluation Rule 1
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|
 
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{| align="center" cellpadding="0" cellspacing="0" width="100%"
If f, g : U -> B
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|- style="height:50px; text-align:right"
 
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| width="98%" | <math>\operatorname{Evaluation~Rule~1}</math>
and u C U,
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| width="2%"  | &nbsp;
 
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|}
then the following are equivalent:
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|-
 
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|
E1a. f(u) = g(u). :V1a
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{| align="center" cellpadding="0" cellspacing="0" width="100%"
::
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|- style="height:50px"
E1b. f(u) <=> g(u). :V1b
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| width="2%"  style="border-top:1px solid black" | &nbsp;
::
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| width="14%" style="border-top:1px solid black" | <math>\text{If}\!</math>
E1c. (( f(u) , g(u) )). :V1c
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| width="84%" style="border-top:1px solid black" | <math>f, g ~:~ X \to \underline\mathbb{B}</math>
:$1a
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|- style="height:50px"
::
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| &nbsp;
E1d. (( f , g ))$(u). :$1b
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| <math>\text{and}\!</math>
</pre>
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| <math>x ~\in~ X</math>
 
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|- style="height:50px"
<br>
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| &nbsp;
 
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| <math>\text{then}\!</math>
<pre>
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| <math>\text{the following are equivalent:}\!</math>
Evaluation Rule 1
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|}
 
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|-
If S, T are sentences
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|
about things in the universe U,
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{| align="center" cellpadding="0" cellspacing="0" width="100%"
 
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|- style="height:10px"
f, g are propositions: U -> B,
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| width="2%"  style="border-top:1px solid black" | &nbsp;
 
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| width="14%" style="border-top:1px solid black" | &nbsp;
and u C U,
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| width="64%" style="border-top:1px solid black" | &nbsp;
 
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| width="20%" style="border-top:1px solid black; border-left:1px solid black" | &nbsp;
then the following are equivalent:
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|- style="height:40px"
 
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| &nbsp;
E1a. f(u) = g(u). :V1a
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| <math>\operatorname{E1a.}</math>
::
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| <math>f(x) ~=~ g(x)</math>
E1b. f(u) <=> g(u). :V1b
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| style="border-left:1px solid black; text-align:center" | <math>\operatorname{E1a~:~V1a}</math>
::
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|- style="height:20px"
E1c. (( f(u) , g(u) )). :V1c
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| colspan="3" | &nbsp;
:$1a
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| style="border-left:1px solid black; text-align:center" | <math>::\!</math>
::
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|- style="height:40px"
E1d. (( f , g ))$(u). :$1b
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| &nbsp;
</pre>
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| <math>\operatorname{E1b.}</math>
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| <math>f(x) ~\Leftrightarrow~ g(x)</math>
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| style="border-left:1px solid black; text-align:center" | <math>\operatorname{E1b~:~V1b}</math>
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|- style="height:20px"
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| colspan="3" | &nbsp;
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| style="border-left:1px solid black; text-align:center" | <math>::\!</math>
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|- style="height:60px"
 +
| &nbsp;
 +
| <math>\operatorname{E1c.}</math>
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| <math>\underline{((}~ f(x) ~,~ g(x) ~\underline{))}</math>
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| style="border-left:1px solid black; text-align:center" |
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<p><math>\operatorname{E1c~:~V1c}</math></p>
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<p><math>\operatorname{E1c~:~$1a}</math></p>
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|- style="height:20px"
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| colspan="3" | &nbsp;
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| style="border-left:1px solid black; text-align:center" | <math>::\!</math>
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|- style="height:40px"
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| &nbsp;
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| <math>\operatorname{E1d.}</math>
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| <math>\underline{((}~ f ~,~ g ~\underline{))}^\$ (x)</math>
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| style="border-left:1px solid black; text-align:center" | <math>\operatorname{E1d~:~$1b}</math>
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|- style="height:10px"
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| colspan="3" | &nbsp;
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| style="border-left:1px solid black" | &nbsp;
 +
|}
 +
|}
    
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<br>
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