how to type empty set in latex

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
how to type empty set in latex	0.89	0.1	9111	34	30
how	0.64	0.2	9824	83	3
to	0.31	0.8	2551	27	2
type	0.08	0.3	5133	83	4
empty	0.75	0.8	3529	19	5
set	1.69	0.5	3626	35	3
in	0.03	0.4	4606	65	2
latex	0.17	0.7	3980	58	5

Keyword	CPC	PCC	Volume	Score
how to type empty set in latex	1.22	0.4	6097	8
how to define empty set in latex	1.98	0.1	3894	35
what is empty set in latex	0.54	0.4	3727	24
empty set symbol in latex	1.32	0.6	5698	86
empty set notation latex	1.04	1	8766	10
latex empty key in	0.49	0.2	4592	21
how to add empty line in latex	0.32	0.4	3428	55
how to insert empty line in latex	0.52	0.2	2145	27
empty space in latex	0.24	0.7	311	15
empty line in latex	1.8	0.5	2805	55
empty address in latex	0.13	0.6	4135	30
latex create an empty line	1.89	0.6	5222	79
latex include empty page	0.37	0.3	5578	40
latex table empty cell	0.21	0.7	7688	3