Database
SUPPLEMENTARY MATERIAL (USERS' MATHBOXES)
Mathbox for Scott Fenton
Transitive closure under a relationship
ctrpred
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df-trpred
Metamath Proof Explorer
Ascii
Structured
Syntax definition
ctrpred
Description:
Define the transitive predecessor class as a class.
Ref
Expression
Assertion
ctrpred
class
TrPred (
𝑅
,
𝐴
,
𝑋
)