LATIMER, Justice. On September 23, 1947, the parties herein entered into a written lease, wherein appellee, Harry Hyman, leased to appellants, who are partners, a storeroom at 1610 Dixie Highway in Louisville. The lease was to begin December 1, 1947, and extend over a three-year period at an agreed rental of $200 per month.
The first section of paragraph 5 of the lease, which is in issue, reads: 'It is mutually agreed by and between the parties hereto that in the event another business of this type is commenced within a radius of two (2) miles before the completion of this building, then, and at the option of the Lessees, this Lease may be declared null and void.'
Paragraph 8, likewise in issue, reads: 'Waiver of any breach of any of the provisions of this Lease shall not be construed as a waiver of any rights herein retained, nor of any subsequent breach.'
Appellants rented the building for the purpose of conducting a self-service laundry. The building was not completed on the date the lease was to begin. However, appellants paid rent for the month of December, although they did not start operating until 'between January 8 and 10'. Sometime 'around December, 1947', before the completion of the building on the leased premises and before the commencement of business operations, appellants discovered that there was a competing business in the vicinity. They, nevertheless, took possession of the storeroom and continued the operation of their business, regularly paying their rent until September, 1948, when they defaulted.
On September 8, 1948, appellee filed a petition claiming rent due, later amending to include additional rent that became due. His petition also contained a claim with reference to removal of certain platforms upon which washing machines had been bolted.
Appellants filed answer denying allegations of petition and in their second paragraph pleaded that appellee had breached the covenants of paragraphs 5 and 8 of the lease. A demurrer to this second paragraph was sustained.
Appellants then filed amended answer pleading as defense that the platforms were removed with the consent and knowledge of the lessor. In the fifth paragraph of this amended answer, they pleaded that the purpose and intention of the option was to protect the lessees 'in the event another self-service laundry should become too great competition' and that lessees could not speculate as to whether or not such competing laundry within the radius 'would constitute lethal competition until these defendants had operated their laundry * * * for a reasonable time.' A demurrer to this paragraph was sustained.
Appellants then made a motion to transfer the case to equity for reformation of lease agreement, alleging that it was the intention of the parties that paragraph 5 above contemplated the right to cancel at any time, dependent on the 'volume of business' which might or might not be reduced by a competing business, and that it was the desire and intention of the parties that this lease should 'result in a profitable venture.' This motion was overruled by the court.
There were two trials in the court below. On the first trial, the jury returned a verdict of $75.00 per month in favor of appellee and allowed appellee $225 for the wrongful removal of the platforms.
Appellee filed a motion for a new trial, which was sustained, and at the second trial, in accordance with the court's peremptory instruction, the jury returned a verdict in favor of appellee for the full amount of the rent. They found for appellants, however, as to the platforms.
Appellants urge the following errors: (1) the trial court erred in sustaining the demurrers to the answers; (2) a court of equity should have had an opportunity to reform the lease because of mutual mistake; (3) the trial court erred in granting a new trial; and (4) the trial court did not permit the lease and the supplemental agreement with reference to minimizing damages to be read to the jury at either trial.
Obviously the trial court sustained demurrers to appellants' answers because it believed that the option to cancel the lease could only be exercised before the completion of the building. Paragraph 5 of the lease appears to be clear and unambiguous upon this. It is only when we consider paragraph 8 in connection with paragraph 5 that any difficulty arises. Careful scrutiny reveals, however, that paragraph 8 refers to the 'waiver of any breach.' A 'breach of a contract' is the commission of an act, or the omission of some act, specified or implied in the contract. 5 Words and Phrases, page 761; People ex rel. Johnson v. New York Produce Exchange, 8 Misc. 552, 29 N.Y.S. 307, 308. The fact that a competitor appeared within the specified radius could certainly not be considered a breach of any of the provisions of the lease by appellee. It was nothing more than the happening of an event which gave appellants the right to elect either to start their business as planned or to cancel their lease as provided on the grounds that another like business had been commenced before the completion of appellee's building.
As to question of mutual mistake, we look at the general rule.
'The action for such relief rests on the theory that the parties came to an understanding, but in reducing it to writing, through mutual mistake or mistake and fraud, some provision was omitted or mistakenly inserted, and the action is so to change the instrument as to conform it to ...