Invalidity of Obligations Concerning Inalienable Things

Notes

1. §50.17.182.prnullius — Both nullius and alicuius function as possessive genitives (genitivus possessivus) with the verbs esse and fieret, meaning "to belong to no one" and "to become someone's" respectively.
2. §50.17.182.prid ut alicuius fieret ... nulla obligatio ualet efficere — The verb efficere takes an ut-clause (with the subjunctive) meaning "to bring it about that" or "to effect that." The demonstrative pronoun id refers to the preceding Quod-clause and functions as the subject of fieret within the ut-clause. Although the main verb ualet is in the present tense, fieret is in the imperfect subjunctive, indicating a hypothetical or potential situation that is naturally impossible to realize.