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Line 1,753: |
| ====Variant 5==== | | ====Variant 5==== |
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− | <pre> | + | <br> |
− | Value Rule 1
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− | If f, g : U -> B, | + | {| 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%" |
| + | | |
| + | {| align="center" cellpadding="0" cellspacing="0" width="100%" |
| + | |- style="height:48px; text-align:right" |
| + | | width="98%" | <math>\text{Value Rule 1}\!</math> |
| + | | width="2%" | |
| + | |} |
| + | |- |
| + | | |
| + | {| align="center" cellpadding="0" cellspacing="0" width="100%" |
| + | |- style="height:48px" |
| + | | width="2%" style="border-top:1px solid black" | |
| + | | width="14%" style="border-top:1px solid black" | <math>\text{If}\!</math> |
| + | | width="84%" style="border-top:1px solid black" | <math>f, g ~:~ X \to \underline\mathbb{B}</math> |
| + | |- style="height:48px" |
| + | | |
| + | | <math>\text{then}\!</math> |
| + | | <math>\text{the following are identical propositions on}~ X:</math> |
| + | |} |
| + | |- |
| + | | |
| + | {| align="center" cellpadding="0" cellspacing="0" width="100%" |
| + | |- style="height:56px" |
| + | | width="2%" style="border-top:1px solid black" | |
| + | | width="14%" style="border-top:1px solid black" | <math>\text{V1a.}\!</math> |
| + | | width="84%" style="border-top:1px solid black" | <math>\downharpoonleft f ~=~ g \downharpoonright</math> |
| + | |- style="height:56px" |
| + | | |
| + | | <math>\text{V1b.}\!</math> |
| + | | <math>\downharpoonleft f ~\Leftrightarrow~ g \downharpoonright</math> |
| + | |- style="height:56px" |
| + | | |
| + | | <math>\text{V1c.}\!</math> |
| + | | <math>\underline{((}~ f ~,~ g ~\underline{))}^\$</math> |
| + | |} |
| + | |} |
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− | then the following are identical propositions on U:
| + | <br> |
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− | V1a. [ f = g ]
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− | | |
− | V1b. [ f <=> g ]
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− | | |
− | V1c. (( f , g ))$
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− | </pre>
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| ===Evaluation Rule 1=== | | ===Evaluation Rule 1=== |