Database
SUPPLEMENTARY MATERIAL (USERS' MATHBOXES)
Mathbox for BJ
Extended real and complex numbers, real and complex projective lines
Direct image and inverse image
cinvdir
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df-invdir
Metamath Proof Explorer
Ascii
Unicode
Syntax definition
cinvdir
Description:
Syntax for the functionalized inverse image.
Ref
Expression
Assertion
cinvdir
Could not format assertion : No typesetting found for class ~P^* with typecode class