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Definition df-m1r 6816
Description: Define signed real constant -1. This is a "temporary" set used in the construction of complex numbers, and is intended to be used only by the construction. (Contributed by NM, 9-Aug-1995.)
Assertion
Ref Expression
df-m1r  |-  -1R  =  [ <. 1P ,  ( 1P  +P.  1P )
>. ]  ~R

Detailed syntax breakdown of Definition df-m1r
StepHypRef Expression
1 cm1r 6396 . 2  class  -1R
2 c1p 6388 . . . 4  class  1P
3 cpp 6389 . . . . 5  class  +P.
42, 2, 3co 5512 . . . 4  class  ( 1P 
+P.  1P )
52, 4cop 3378 . . 3  class  <. 1P , 
( 1P  +P.  1P ) >.
6 cer 6392 . . 3  class  ~R
75, 6cec 6104 . 2  class  [ <. 1P ,  ( 1P  +P.  1P ) >. ]  ~R
81, 7wceq 1243 1  wff  -1R  =  [ <. 1P ,  ( 1P  +P.  1P )
>. ]  ~R
Colors of variables: wff set class
This definition is referenced by:  m1r  6835  m1p1sr  6843  m1m1sr  6844
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