Definition df-lti 3797

Description: Define 'less than' on positive integers. This is a "temporary" set used in the construction of complex numbers df-c 4034, and is intended to be used only by the construction.

Assertion

Ref	Expression
df-lti	⊢ <N = (E ∩ (N × N))

Detailed syntax breakdown of Definition df-lti

Step	Hyp	Ref	Expression
1		clti 3769	. 2 class <N
2		cep 2056	. . 3 class E
3		cnpi 3766	. . . 4 class N
4	3, 3	cxp 2408	. . 3 class (N × N)
5	2, 4	cin 1486	. 2 class (E ∩ (N × N))
6	1, 5	wceq 1091	1 wff <N = (E ∩ (N × N))

This definition is referenced by:  ltpiord 3809  ltrelpi 3811

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