Let a (m). (a) Show that if 6 = 1, then b e...

 

Transcribed Image Text:

Let a € Ф(m). (a) Show that if ā · 6 = 1, then b e (m). (b) If ā · 6 = 1 and ā · b1 = 1, show that 6 = b1. (Hence for every ā E P(m) there exists an unique be (m) such that ā ·b = 1.) Let a € Ф(m). (a) Show that if ā · 6 = 1, then b e (m). (b) If ā · 6 = 1 and ā · b1 = 1, show that 6 = b1. (Hence for every ā E P(m) there exists an unique be (m) such that ā ·b = 1.)