Description: The floor function of a division of a real number by a positive real number is a real number. (Contributed by Alexander van der Vekens, 14-Apr-2018)
Ref | Expression | ||
---|---|---|---|
Assertion | refldivcl | ⊢ ( ( 𝐾 ∈ ℝ ∧ 𝐿 ∈ ℝ+ ) → ( ⌊ ‘ ( 𝐾 / 𝐿 ) ) ∈ ℝ ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | rerpdivcl | ⊢ ( ( 𝐾 ∈ ℝ ∧ 𝐿 ∈ ℝ+ ) → ( 𝐾 / 𝐿 ) ∈ ℝ ) | |
2 | reflcl | ⊢ ( ( 𝐾 / 𝐿 ) ∈ ℝ → ( ⌊ ‘ ( 𝐾 / 𝐿 ) ) ∈ ℝ ) | |
3 | 1 2 | syl | ⊢ ( ( 𝐾 ∈ ℝ ∧ 𝐿 ∈ ℝ+ ) → ( ⌊ ‘ ( 𝐾 / 𝐿 ) ) ∈ ℝ ) |