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===Definition 12===
 
===Definition 12===
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<pre>
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Definition 12
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If R c OxSxI,
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and x C S,
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then the following are identical subsets of O:
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D12a. ROS.x
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D12b. DenR.x
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D12c. DenR|x
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D12d. DenR(, x)
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D12e. Den(R, x)
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D12f. Den(R).x
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D12g. {o C O : <o, x> C Den(R)}
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D12h. {o C O : <o, x, i> C R for some i C I}
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</pre>
      
<br>
 
<br>
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|- style="height:40px; text-align:center"
 
|- style="height:40px; text-align:center"
 
| width="80%" | &nbsp;
 
| width="80%" | &nbsp;
| width="20%" | <math>\operatorname{Definition~10}</math>
+
| width="20%" | <math>\operatorname{Definition~12}</math>
 
|}
 
|}
 
|-
 
|-
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| width="18%" style="border-top:1px solid black" | <math>\text{If}\!</math>
 
| width="18%" style="border-top:1px solid black" | <math>\text{If}\!</math>
 
| width="80%" style="border-top:1px solid black" | <math>L ~\subseteq~ O \times S \times I</math>
 
| width="80%" style="border-top:1px solid black" | <math>L ~\subseteq~ O \times S \times I</math>
 +
|- style="height:40px"
 +
| &nbsp;
 +
| <math>\text{and}\!</math>
 +
| <math>x ~\in~ S</math>
 
|- style="height:40px"
 
|- style="height:40px"
 
| &nbsp;
 
| &nbsp;
 
| <math>\text{then}\!</math>
 
| <math>\text{then}\!</math>
| <math>\text{the following are identical subsets of}~ O \times S \, :</math>
+
| <math>\text{the following are identical subsets of}~ O \, :</math>
 
|}
 
|}
 
|-
 
|-
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|- style="height:40px"
 
|- style="height:40px"
 
| width="2%"  style="border-top:1px solid black" | &nbsp;
 
| width="2%"  style="border-top:1px solid black" | &nbsp;
| width="18%" style="border-top:1px solid black" | <math>\operatorname{D10a.}</math>
+
| width="18%" style="border-top:1px solid black" | <math>\operatorname{D12a.}</math>
| width="80%" style="border-top:1px solid black" | <math>L_{OS}\!</math>
+
| width="80%" style="border-top:1px solid black" | <math>L_{OS} \cdot x</math>
 +
|- style="height:40px"
 +
| &nbsp;
 +
| <math>\operatorname{D12b.}</math>
 +
| <math>\operatorname{Den}^L \cdot x</math>
 +
|- style="height:40px"
 +
| &nbsp;
 +
| <math>\operatorname{D12c.}</math>
 +
| <math>\operatorname{Den}^L |_x</math>
 +
|- style="height:40px"
 +
| &nbsp;
 +
| <math>\operatorname{D12d.}</math>
 +
| <math>\operatorname{Den}^L (-, x)</math>
 
|- style="height:40px"
 
|- style="height:40px"
 
| &nbsp;
 
| &nbsp;
| <math>\operatorname{D10b.}</math>
+
| <math>\operatorname{D12e.}</math>
| <math>\operatorname{Den}^L</math>
+
| <math>\operatorname{Den}(L, x)</math>
 
|- style="height:40px"
 
|- style="height:40px"
 
| &nbsp;
 
| &nbsp;
| <math>\operatorname{D10c.}</math>
+
| <math>\operatorname{D12f.}</math>
| <math>\operatorname{Den}(L)</math>
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| <math>\operatorname{Den}(L) \cdot x</math>
 
|- style="height:40px"
 
|- style="height:40px"
 
| &nbsp;
 
| &nbsp;
| <math>\operatorname{D10d.}</math>
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| <math>\operatorname{D12g.}</math>
| <math>\operatorname{proj}_{OS}(L)</math>
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| <math>\{ o \in O ~:~ (o, x) \in \operatorname{Den}(L) \}</math>
 
|- style="height:40px"
 
|- style="height:40px"
 
| &nbsp;
 
| &nbsp;
| <math>\operatorname{D10e.}</math>
+
| <math>\operatorname{D12h.}</math>
| <math>\{ (o, s) \in O \times S ~:~ (o, s, i) \in L ~\operatorname{for~some}~ i \in I \}</math>
+
| <math>\{ o \in O ~:~ (o, x, i) \in L ~\operatorname{for~some}~ i \in I \}</math>
 
|}
 
|}
 
|}
 
|}
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