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Definition df-1 9029
Description: Define the complex number 1. (Contributed by NM, 22-Feb-1996.) (New usage is discouraged.)
Assertion
Ref Expression
df-1  |-  1  =  <. 1R ,  0R >.

Detailed syntax breakdown of Definition df-1
StepHypRef Expression
1 c1 9022 . 2  class  1
2 c1r 8775 . . 3  class  1R
3 c0r 8774 . . 3  class  0R
42, 3cop 3841 . 2  class  <. 1R ,  0R >.
51, 4wceq 1653 1  wff  1  =  <. 1R ,  0R >.
Colors of variables: wff set class
This definition is referenced by:  ax1cn  9055  axi2m1  9065  ax1ne0  9066  ax1rid  9067  axrrecex  9069
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