べき集合 じゃない
beki shūgōjanai
1. Not a required set.; Not a necessary set.
Noun
#2839818
1. Not a required set.; Not a necessary set.
1. not
1. then; well
1. within ...; inside ...
1. should; must
1. vacuum bottle; thermos
2. jar
1. a little less than; a little under
2. weakness; the weak
3. -lower (seismic intensity)
1. patient