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Definition df-le 6863
Description: Define 'less than or equal to' on the extended real subset of complex numbers. (Contributed by NM, 13-Oct-2005.)
Assertion
Ref Expression
df-le  <_  RR*  X.  RR*  \  `'  <

Detailed syntax breakdown of Definition df-le
StepHypRef Expression
1 cle 6858 . 2  <_
2 cxr 6856 . . . 4  RR*
32, 2cxp 4286 . . 3  RR*  X. 
RR*
4 clt 6857 . . . 4  <
54ccnv 4287 . . 3  `'  <
63, 5cdif 2908 . 2 
RR*  X.  RR*  \  `'  <
71, 6wceq 1242 1  <_  RR*  X.  RR*  \  `'  <
Colors of variables: wff set class
This definition is referenced by:  lerelxr  6879  xrlenlt  6881
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