數學與統計 大學 約3年以前

離散數學第二章 邏輯的基本原則 請問這題的b怎麼算

19. Provide the steps and reasons, as in Exercise 18, to establish the following logical equivalences. a) p V [p ^ (p V q)] p lorer v b) p va v (p^^r) A p Vavr c) [(-pv-q) → (p^q^r)] paq 20. Şimplify each of the networks shown in Fig. 3.

數學與統計 大學 5年以上以前

求解這題！！

111. (3a) Use mathematical induction to prove that for 生 0 and any DoSitlve integer 7, (b) Use part (3a) to show thatc 全 2./. (c) Use part (a) to show that 2 同mm 2 9人 for any positive Integer /.