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< ul class = "crumbs" > < li > < a href = "../index.html" > Home< / a > < / li > < li > < a href = "../services.html" > Services< / a > < / li > < li > < a href = "index.html" > calculus< / a > < / li > < li > < a href = "index.html#2" > Chapter 2: Unary Predicates< / a > < / li > < li > < b > Unary Predicates< / b > < / li > < / ul > < / div >
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< p class = "purpose" > A lightweight structure to represent a unary predicate, which is either true or false when applied to a single term.< / p >
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< p class = "commentary firstcommentary" > < a id = "SP1" class = "paragraph-anchor" > < / a > < b > § 1. < / b > UPs are relatively small and quick to make, and are parametrised in various
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ways. For example, there is no single < span class = "extract" > < span class = "extract-syntax" > kind=K< / span > < / span > unary predicate; there is one
for every possible kind < span class = "extract" > < span class = "extract-syntax" > K< / span > < / span > .
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< / p >
< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > typedef< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > unary_predicate< / span > < span class = "plain-syntax" > {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > up_family< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > family< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > kind< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > assert_kind< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > composited< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > for kind UPs only: arises from a composite determiner/noun like "somewhere"< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > unarticled< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > for kind UPs only: arises from an unarticled usage like "vehicle", not "a vehicle"< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > wording< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > calling_name< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > for calling UPs only< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > lcon_ti< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > lcon< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > for adjectival UPs only< / span >
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< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > unary_predicate< / span > < span class = "plain-syntax" > ;< / span >
< / pre >
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< ul class = "endnotetexts" > < li > The structure unary_predicate is accessed in 2/upf, 2/kp, 4/prp and here.< / li > < / ul >
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< p class = "commentary firstcommentary" > < a id = "SP2" class = "paragraph-anchor" > < / a > < b > § 2. < / b > < / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > unary_predicate< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > UnaryPredicates::new< / span > < button class = "popup" onclick = "togglePopup('usagePopup1')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup1" > Usage of < span class = "code-font" > < span class = "function-syntax" > UnaryPredicates::new< / span > < / span > :< br / > Kind Predicates - < a href = "2-kp.html#SP3" > § 3< / a > , < a href = "2-kp.html#SP4" > § 4< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > up_family< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > f< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > unary_predicate< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > up< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > CREATE< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > unary_predicate< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > up< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > family< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > f< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > up< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > assert_kind< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > up< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > lcon< / span > < span class = "plain-syntax" > = < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > up< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > calling_name< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > EMPTY_WORDING< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > up< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > UnaryPredicates::log< / span > < button class = "popup" onclick = "togglePopup('usagePopup2')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup2" > Usage of < span class = "code-font" > < span class = "function-syntax" > UnaryPredicates::log< / span > < / span > :< br / > Calculus Module - < a href = "1-cm.html#SP3" > § 3< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > unary_predicate< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > up< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < a href = "2-upf.html#SP9" class = "function-link" > < span class = "function-syntax" > UnaryPredicateFamilies::log< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > DL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > up< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
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< / pre >
< p class = "commentary firstcommentary" > < a id = "SP3" class = "paragraph-anchor" > < / a > < b > § 3. < / b > When deep-copying propositions, we also deep-copy their unary predicates:
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > unary_predicate< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > UnaryPredicates::copy< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > unary_predicate< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > up_from< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > unary_predicate< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > up< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > CREATE< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > unary_predicate< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > up< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > family< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > up_from< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > family< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > up< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > assert_kind< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > up_from< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > assert_kind< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > up< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > composited< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > up_from< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > composited< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > up< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > unarticled< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > up_from< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > unarticled< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > up< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > calling_name< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > up_from< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > calling_name< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > up< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > lcon< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > up_from< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > lcon< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > up< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > }< / span >
< / pre >
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