Database
SUPPLEMENTARY MATERIAL (USERS' MATHBOXES)
Mathbox for Glauco Siliprandi
Ordering on real numbers - Real and complex numbers basic operations
ren0
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eluzelz2
Metamath Proof Explorer
Ascii
Structured
Theorem
ren0
Description:
The set of reals is nonempty.
(Contributed by
Glauco Siliprandi
, 23-Oct-2021)
Ref
Expression
Assertion
ren0
⊢
ℝ ≠ ∅
Proof
Step
Hyp
Ref
Expression
1
0re
⊢
0 ∈ ℝ
2
1
ne0ii
⊢
ℝ ≠ ∅