<http://caligraph.org/ontology/Logic_symbol>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Mathematical_symbol> .
<http://caligraph.org/ontology/Mathematical_symbol>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Grapheme> .
<http://caligraph.org/ontology/Mathematical_symbol>	<http://www.w3.org/2000/01/rdf-schema#label>	"Mathematical symbol" .
<http://caligraph.org/ontology/Mathematical_symbol>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_mathematical_symbols_by_subject> .
<http://caligraph.org/ontology/Mathematical_symbol>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/Pythagorean_symbol>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Mathematical_symbol> .
<http://caligraph.org/ontology/Mathematical_symbol>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Mathematical_symbols> .