typo example 9.2.6 #32
Description
The problem box says
Show that {n : ℤ | n ≡ 1 [ZMOD 5]} ∩ {n : ℤ | n ≡ 1 [ZMOD 5]} = ∅
but should say
Show that {n : ℤ | n ≡ 1 [ZMOD 5]} ∩ {n : ℤ | n ≡ 2 [ZMOD 5]} = ∅
{{ message }}
The problem box says
Show that {n : ℤ | n ≡ 1 [ZMOD 5]} ∩ {n : ℤ | n ≡ 1 [ZMOD 5]} = ∅
but should say
Show that {n : ℤ | n ≡ 1 [ZMOD 5]} ∩ {n : ℤ | n ≡ 2 [ZMOD 5]} = ∅