Similarly, in Anglo-Saxon law, with regard to bilateral contracts whose normal commercial system provides for the reciprocal use of services by the contractors, acceptance, at the choice of oblique, may be made by an explicit declaration or a coherent conduct (Acceptance by conduct). The adoption must be in accordance with the proposal, by which, also in English law, that of Article 1326(5.c c.c so that `adoption which does not correspond to the proposal is equivalent to a new proposal`. Adoption must therefore be final.  DRAETTA U., The Law of International Treaties. Les pathologies des traités , Cedam, 1988, p. 53 et seed; DE NOVA G., ibid., p. 41. Accustomed to the contract as an agreement between two parties and especially to the order of negotiations / provisional contract / final contract, we come up against, with some surprises and discomforts, in sequences such as that which characterizes the sale of qualified shareholdings: letter of intent, diligence, salt and purchase agreement, conclusion. In Italian private law, its functions are not similar to those of the deed. These are not the prescribed forms in case of nullity. The Interfoto judgment is important because it highlights the absence of a general principle of good faith in English law, as well as the existence of specific doctrines and obligations demonstrating the absence of an overall principle. The attraction of the right to lawlessness is fully manifested in cases where the courteous relationship overlaps with a certain type of contract (courtesy credit, courtesy, courtesy guard, etc.). In these cases, the overlap develops in inclusion: the contradictory doctrine of the treaty, freely and comity- Opinion is consolidated; the methodological doubt it raises is the overvaluation of the act in relation to the report.
To put it simply, the courtesy relationship is essentially covered by the study of the social relationship; Therefore, the polite act, separated from the relational flow in which it originates, can be examined in isolation and integrated into a contractual scheme for compatibility. . . .