Set theory

Set theory ke kaam me laae ke mathematics me sets ke adhyan karaa jaae hae. Ek set kuchh chij ke sangrah (collection) hae. Ii chij ke set ke "element" nai to "member" bola jaae hae. Set likhe ke khaatir elements ke "curly brackets" ke bhittar likha jaae hae. Jaise ki {1,3,5,7} me 1, 3, 5, 7 hae. Set ke naam ke capital Roman akchhar me likha jaae hae, jaise ki ${\displaystyle A}$, ${\displaystyle B}$, ${\displaystyle C}$.^[1] Sets ke Venn diagram me bhi dekhaawa jaae hae.

Ek venn diagram

Set theory ke Georg Cantor, 1874.me banais rahaa, lekin isme kuchh galtii rahaa aur Bertrand Russel iske sudharis rahaa.^[2]