Concetti Chiave
古典論理のグラフ理論的表現を紹介し、単純な帰納的文の証明可能性を示す。
Statistiche
A set of sentences {S} is provable if-and-only-if its graph representation G = (V, E) as vertices {V } and edges {E} contracts to a single vertex G0 = ({v0}, ∅}.
{S} is provable if-and-only-if G is homomorphic to G0, or equivalently provable if G is iteratively contractible to G0.
Citazioni
"If the task of philosophy is to break the domination of words over the human mind [...] then my concept notation, being developed for these purposes, can be a useful instrument for philosophers [....] I believe the cause of logic has been advanced already by the invention of this concept notation." — Gottlob Frege (preface to Begriffsschrift, 1879; English translation)