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Definition df-r 9523
Description: Define the set of real numbers. (Contributed by NM, 22-Feb-1996.) (New usage is discouraged.)
Assertion
Ref Expression
df-r

Detailed syntax breakdown of Definition df-r
StepHypRef Expression
1 cr 9512 . 2
2 cnr 9264 . . 3
3 c0r 9265 . . . 4
43csn 4029 . . 3
52, 4cxp 5002 . 2
61, 5wceq 1395 1
Colors of variables: wff setvar class
This definition is referenced by:  opelreal  9528  elreal  9529  elreal2  9530  axresscn  9546  ax1rid  9559  avril1  25171
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