The following theories are answers to existence questions, i.e. answers to such questions as "Does theory exist in the scientonomic domain? ", "Is there such a thing as element decay?". Existence theories are first order descriptive ontological theories.
To create a question theory in this category, locate the respective term among the [[:Category:Definitional Topic|definitional topics]], click on it, and scroll down to the ontology section.
[[Category:Descriptive Ontological Theory]]
<div style="display: none;">{{#default_form:Existence Theory}}</div>
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