Description: The floor (greatest integer) function is real. (Contributed by NM, 15-Jul-2008)
Ref | Expression | ||
---|---|---|---|
Assertion | reflcl | ⊢ ( 𝐴 ∈ ℝ → ( ⌊ ‘ 𝐴 ) ∈ ℝ ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | flcl | ⊢ ( 𝐴 ∈ ℝ → ( ⌊ ‘ 𝐴 ) ∈ ℤ ) | |
2 | 1 | zred | ⊢ ( 𝐴 ∈ ℝ → ( ⌊ ‘ 𝐴 ) ∈ ℝ ) |