. "a line of reasoning that shows how a conclusion follows logically from accepted propositions"@en-us . . "05780718-n"^^ . . "0"^^ . . . . . . . "derivation"@en-us . . . "derivation"^^ . . "105446547"@en-us . . "0"^^ . "104456321"@en-us . . . . "105780718"^^ . . .