Database
SUPPLEMENTARY MATERIAL (USERS' MATHBOXES)
Mathbox for BJ
Extended real and complex numbers, real and complex projective lines
Extended numbers and projective lines as sets
cminfty
Next ⟩
df-bj-minfty
Metamath Proof Explorer
Ascii
Unicode
Syntax definition
cminfty
Description:
Syntax for "minus infinity".
Ref
Expression
Assertion
cminfty
class
-∞