Metamath Proof Explorer


Theorem nn0addge1i

Description: A number is less than or equal to itself plus a nonnegative integer. (Contributed by NM, 10-Mar-2005)

Ref Expression
Hypotheses nn0addge1i.1 𝐴 ∈ ℝ
nn0addge1i.2 𝑁 ∈ ℕ0
Assertion nn0addge1i 𝐴 ≤ ( 𝐴 + 𝑁 )

Proof

Step Hyp Ref Expression
1 nn0addge1i.1 𝐴 ∈ ℝ
2 nn0addge1i.2 𝑁 ∈ ℕ0
3 nn0addge1 ( ( 𝐴 ∈ ℝ ∧ 𝑁 ∈ ℕ0 ) → 𝐴 ≤ ( 𝐴 + 𝑁 ) )
4 1 2 3 mp2an 𝐴 ≤ ( 𝐴 + 𝑁 )