Keyword Analysis & Research: is the null set in every set

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
is the null set in every set	0.17	0.5	4274	28	28
is	0.84	0.4	3636	10	2
the	0.73	0.5	1164	2	3
null	0.73	0.9	4767	96	4
set	1.68	0.9	1999	10	3
in	0.32	0.7	5468	91	2
every	1.74	0.6	8049	9	5
set	1.4	0.5	8283	36	3

Keyword	CPC	PCC	Volume	Score
is the null set in every set	1.91	0.4	6262	44
is null set a subset of every set	0.37	0.7	4371	14
is null set a proper subset of every set	0.55	0.4	922	19
is null set an element of every set	1.92	0.6	7457	47
why is the null set a subset of every set	1.15	0.9	158	80
prove that null set is a subset of every set	0.42	0.6	5113	5
null set is improper subset of every set	0.05	0.3	6737	93