Instruct: Given a legal statement, retrieve articles that support it
Query:  A condition may be added to manifestation of set-offs. 

Article 506
(1) Set-offs are effected through the manifestation of one party's intention to the other. In such a case, no condition or time limit may be added to the manifestation of intention.
(2) A manifestation of intention as referred to in the preceding paragraph is effective retroactive to the time when the obligations of both parties became eligible to be set-off..


Article 439 (1) If one of the joint and several obligors has a claim against the obligee and invokes a set-off, the claim is extinguished for the benefit of all joint and several obligors.
(2) Until the joint and several obligor that has the claim referred to in the preceding paragraph invokes a set-off, other joint and several obligors may refuse to perform the obligation to the obligee only to the extent of that joint and several obligor's share of the obligation.


Article 443 (1) If one of the joint and several obligors performs the obligation or otherwise obtains a common discharge in exchange for that obligor's own property, while knowing the existence of other joint and several obligors but without giving notice of the common discharge to the other joint and several obligors, another joint and several obligor has a defense that can be duly asserted against the obligee, the other joint and several obligor may duly assert that defense against the joint and several obligor that obtained the discharge to the extent of the other obligor's share of the obligation. In such a case, if the other joint and several obligor duly asserts a set-off as defense against the joint and several obligor that obtained the discharge, the joint and several obligor may request the obligee to perform the obligation which should have been extinguished due to set-off.


Article 130
(1) If a party that would suffer a detriment as a result of the fulfillment of a condition intentionally prevents the fulfillment of that condition, the counterparty may deem that the condition has been fulfilled.
(2) If a party who would enjoy a benefit as a result of the fulfillment of a condition wrongfully has that condition fulfilled, the counterparty may deem that the condition has not been fulfilled..


Article 443
(1) If one of the joint and several obligors performs the obligation or otherwise obtains a common discharge in exchange for that obligor's own property, while knowing the existence of other joint and several obligors but without giving notice of the common discharge to the other joint and several obligors, another joint and several obligor has a defense that can be duly asserted against the obligee, the other joint and several obligor may duly assert that defense against the joint and several obligor that obtained the discharge to the extent of the other obligor's share of the obligation. In such a case, if the other joint and several obligor duly asserts a set-off as defense against the joint and several obligor that obtained the discharge, the joint and several obligor may request the obligee to perform the obligation which should have been extinguished due to set-off.
(2) If one of the joint and several obligors that has performed the obligation or otherwise obtained a common discharge in exchange for that obligor's own property, while knowing the existence of other joint and several obligors, fails to give notice of the acquisition of the discharge to the other joint and several obligors, and as a result, another joint and several obligor performs the obligation or performs another act in good faith to obtain discharge in exchange for that obligor's own property, the other joint and several obligor may deem that the act performed to obtain the discharge is valid..


Article 551
(1) The donor is presumed to have promised to deliver or transfer the thing or right that is the subject matter of the gift, while maintaining its condition as of the time when it is specified as the subject matter of the gift.
(2) With respect to gifts with burden, the donor provides the same warranty as that of a seller, to the extent of that burden..


Article 93
(1) The validity of a manifestation of intention is not impaired even if the person making it does so while knowing that it does not reflect that person's true intention;provided, however, that if the other party knew or could have known that the manifestation was not the true intention of the person who made it, that manifestation of intention is void.
(2) The nullity of a manifestation of intention under the provisions of the proviso to the preceding paragraph may not be duly asserted against a third party in good faith..


Article 316
If a lessor has received a security deposit prescribed in Article 622-2, paragraph (1), the lessor has a statutory lien solely against the portion of the lessor's claim that will not be satisfied by that security deposit..


Article 551
(1) The donor is presumed to have promised to deliver or transfer the thing or right that is the subject matter of the gift, while maintaining its condition as of the time when it is specified as the subject matter of the gift.
(2) With respect to gifts with burden, the donor provides the same warranty as that of a seller, to the extent of that burden..


Article 663
(1) If the parties have not specified the timing of the return of the bailed thing, the bailee may return the same at any time.
(2) If the timing of the return is specified, the bailee may not return the deposited thing prior to the due date unless there is a compelling reason to do so..


Article 484
(1) Unless a particular intention is manifested with respect to the place where the performance should take place, the delivery of a specific thing must be effected at the place where that thing was located when the relevant claim accrued, and the discharge of any other obligation must be effected at the current domicile of the obligee.
(2) If the trading hours are specified by laws and regulations or customs, performance may be made or demanded only within the trading hours..


Article 467
(1) The assignment of a claim (including the assignment of a claim that is yet to arise) may not be duly asserted against the applicable obligor or any other third party, unless the assignor gives notice thereof to the obligor or the obligor has consented to the same.
(2) Notice or consent as referred to in the preceding paragraph may not be duly asserted against a third party other than the obligor unless the notice or the consent is made using an instrument bearing a certified date..


Article 116
Ratification is retroactive to the time of the conclusion of the contract unless a particular intention is manifested;provided, however, that this may not prejudice the rights of a third party..


Article 484
(1) Unless a particular intention is manifested with respect to the place where the performance should take place, the delivery of a specific thing must be effected at the place where that thing was located when the relevant claim accrued, and the discharge of any other obligation must be effected at the current domicile of the obligee.
(2) If the trading hours are specified by laws and regulations or customs, performance may be made or demanded only within the trading hours..


Article 474
(1) A third party may also perform an obligation.
(2) A third party that has no legitimate interest in performing an obligation may not perform the obligation against the will of the obligor;provided, however, that this does not apply if the obligee did not know that the performance is against the will of the obligor.
(3) The third party prescribed in the preceding paragraph may not perform the obligation against the will of the obligee;provided, however, that this does not apply if the third party performs the obligation as requested by the obligor, and the obligee knew this.
(4) The provisions of the preceding three paragraphs do not apply if the nature of an obligation does not permit the performance by a third party or if a party manifests the intention to prohibit or restrict the performance by a third party..


Article 128
While it is uncertain whether or not a condition will be fulfilled, a party to a juridical act that is subject to a condition may not prejudice the other party's interests that would arise from the juridical act upon fulfillment of the condition..


Article 663
(1) If the parties have not specified the timing of the return of the bailed thing, the bailee may return the same at any time.
(2) If the timing of the return is specified, the bailee may not return the deposited thing prior to the due date unless there is a compelling reason to do so..


Article 487
If there is an instrument evidencing a claim and the person making the performance has made full performance, that person may demand the return of the instrument..


Article 502 (1) If performance by subrogation occurs with respect to one part of a claim, the subrogee, with the consent of the obligee, may exercise the rights of the subrogee together with the obligee in proportion to the value of the subrogee's performance.


Article 134
A juridical act subject to a condition precedent is void if the condition is dependent only upon the intention of the obligor..


Article 428
The provisions of the following Subsection (Joint and Several Claims) (excluding the provisions of Articles 433 and 435) apply mutatis mutandis if the subject matter of a claim is indivisible by nature and the claim is held by two or more obligees..


Article 20
(1) After a person with qualified legal capacity who is involved in dealings with another party becomes a person with the legal capacity to act (meaning a person whose legal capacity to act is not subject to restrictions; the same applies hereinafter), the other party to those dealings may fix a period of one month or longer and demand that the person give a definite answer within that period of time as to whether the person will ratify an act that the person may rescind. In such a case, if the person fails to send a definite answer within that period of time, the person is deemed to have ratified that act.
(2) The second sentence of the preceding paragraph also applies if, before the person with qualified legal capacity becomes a person with the legal capacity to act, the other party to dealings involving the person with qualified legal capacity lodges the demand prescribed in the preceding paragraph with the legal representative, curator, or assistant of that person with respect to an act within the scope of their authority, and they fail to send a definite answer within the fixed period of time referred to in that paragraph.
(3) If a person does not send notice within the period of time set forth in the preceding two paragraphs indicating that the person has completed any special formalities that an act requires, the person is deemed to have rescinded that act.
(4) The other party to dealings involving a person with qualified legal capacity may lodge a demand with a person under curatorship or with a person under assistance who is subject to a decision as referred to in Article 17, paragraph (1) to demand that the person get the curator or assistant to ratify an act within the fixed period referred to in paragraph (1). In such a case, if the person under curatorship or person under assistance does not send notice within that period indicating that the person has gotten the curator or assistant to ratify the act in question, the person is deemed to have rescinded that act..


Article 398-4
(1) The scope of the claims to be secured by a revolving mortgage may be changed if the change is effected before the principal is crystallized. The same applies with respect to change of obligors.
(2) In order to effect the changes referred to in the preceding paragraph, it is not required that the approval of third parties including subordinated mortgagee be obtained.
(3) If the change under paragraph (1) is not registered before the principal is crystallized, it is deemed that the change was not effected..


Article 31
A person subject to a declaration of disappearance pursuant to the provisions of paragraph (1) of the preceding Article is deemed to have died when the period of time referred to in that paragraph ended, and a person subject to a declaration of disappearance pursuant to the provisions of paragraph (2) of that Article is deemed to have died when that danger had passed.
Article 30
(1) If it has been unclear for seven years whether an absentee is dead or alive, the family court may enter a declaration of disappearance at the request of an interested person.
(2) The provisions of the preceding paragraph also apply if it has been unclear whether a person who has entered a war zone, was aboard a vessel that has sunk, or was otherwise exposed to a danger likely to result in a person's death is dead or alive, for one year after the war has ended, the vessel sank, or such other danger has passed..


Article 468
(1) An obligor may duly assert against the assignee any event that has taken place with regard to the assignor by the time of completion of the perfection.
(2) For the purpose of the application of the provisions of the preceding paragraph in the case referred to in Article 466, paragraph (4), the phrase "at the time of the completion of the perfection" in that paragraph is deemed to be replaced with "at the time when a reasonable period of time referred to in Article 466, paragraph (4) has elapsed"; and to apply the provisions of that paragraph in the case referred to in Article 466-3, the phrase "at the time of the completion of the perfection" in that paragraph is deemed to be replaced with "at the time when the obligor receives a request from the assignee referred to in Article 466-3 to make a deposit with an official depository pursuant to the provisions of that Article"..
