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Definition df-le 7064
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 ≤ = ((ℝ* × ℝ*) ∖ < )

Detailed syntax breakdown of Definition df-le
StepHypRef Expression
1 cle 7059 . 2 class
2 cxr 7057 . . . 4 class *
32, 2cxp 4343 . . 3 class (ℝ* × ℝ*)
4 clt 7058 . . . 4 class <
54ccnv 4344 . . 3 class <
63, 5cdif 2914 . 2 class ((ℝ* × ℝ*) ∖ < )
71, 6wceq 1243 1 wff ≤ = ((ℝ* × ℝ*) ∖ < )
Colors of variables: wff set class
This definition is referenced by:  lerelxr  7080  xrlenlt  7082
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