inventor's paradox
Abstraction
Generalization
/suto3/google.icon
inventor's paradox
/suto3/Google画像検索.icon
inventor's paradox
/suto3/Google定義検索.icon
inventor's paradox
/suto3/wikipedia.icon
inventor's paradox
/suto3/weblio.icon
inventor's paradox
/suto3/kotobank.icon
inventor's paradox
/suto3/jisho.icon
inventor's paradox