#theory  a well-substantiated explanation of some aspect of the natural world; an organized system of accepted knowledge that applies in a variety of circumstances to explain a specific set of phenomena; "theories can incorporate facts and laws and tested hypotheses"; "true in fact and theory"
  supertype:  #concept__conception__construct  an abstract or general idea inferred or derived from specific instances
  subtype:  #reductionism.theory  #blastogenesis  #theory_of_preformation  #scientific_theory  #economic_theory  #structural_sociology  #structural_anthropology
  part:  #law_of_nature__law  a generalization that describes recurring facts or events in nature: "the laws of thermodynamics"
  part:  #hypothesis.concept__possibility  a tentative theory about the natural world; a concept that is not yet verified but that if true would explain certain facts or phenomena; "a scientific hypothesis that survives experimental testing becomes a scientific theory"; "he proposed a fresh theory of alkalis that later was accepted in chemical practices"

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