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Definition df-lti 6291
Description: Define 'less than' on positive integers. 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, 6-Feb-1996.)
Assertion
Ref Expression
df-lti  <N  _E  i^i  N. 
X.  N.

Detailed syntax breakdown of Definition df-lti
StepHypRef Expression
1 clti 6259 . 2  <N
2 cep 4015 . . 3  _E
3 cnpi 6256 . . . 4  N.
43, 3cxp 4286 . . 3  N. 
X.  N.
52, 4cin 2910 . 2  _E 
i^i  N.  X.  N.
61, 5wceq 1242 1  <N  _E  i^i  N. 
X.  N.
Colors of variables: wff set class
This definition is referenced by:  ltpiord  6303  ltrelpi  6308
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