31. The table below gives the cardinal numbers in Istro-Romanian. 32. All determinate infinite sets have cardinal numbers the same as the natural or counting numbers. 33. The cardinal number of a set is the equivalence class of all sets equinumerous to it. 34. Another area of study is the size of sets, which is described with the cardinal numbers . 35. In the infinite case, the product is interpreted in the sense of products of cardinal numbers . 36. A nominal phrase contains at least a cardinal number , an adjective, a pronoun or a noun. 37. The article cardinal numbers helps answer your questions. 38. Next followed in Chapters 3 to 5 the classical theory of cardinal numbers , order types and ordinals. 39. The cardinal number " one " is partly identical in form and inflection to the indefinite article. 40. Another aspect of typology that has been studied in sign languages is their systems for cardinal numbers .