Metamath Proof Explorer


Theorem zmodfzp1

Description: An integer mod B lies in the first B + 1 nonnegative integers. (Contributed by AV, 27-Oct-2018)

Ref Expression
Assertion zmodfzp1 ⊢ A ∈ ℤ ∧ B ∈ ℕ → A mod B ∈ 0 … B

Proof

Step Hyp Ref Expression
1 fzossfz ⊢ 0 ..^ B ⊆ 0 … B
2 zmodfzo ⊢ A ∈ ℤ ∧ B ∈ ℕ → A mod B ∈ 0 ..^ B
3 1 2 sselid ⊢ A ∈ ℤ ∧ B ∈ ℕ → A mod B ∈ 0 … B