Unlike the implied warranty of merchantability, the implied warranty of fitness does not contain a requirement that the seller be a merchant with respect to the goods sold. It merely requires that the seller possess knowledge and expertise on which the buyer may rely.
The symbol used by mathematicians to represent the ratio of a circle's circumference to its diameter is the lowercase Greek letter Ï, sometimes spelled out as pi. In English, Ï is pronounced as pie (/paÉª/ , paÉª).
I shall show that Greek mathematics, for example, is not a search for patterns but for concrete properties of concrete mathematical objects; and I shall show, conversely, that it is when mathematics becomes symbolic that patterns, as such, are suggested to mathematicians and become objects of their thought.