Proof that first countability is hereditary property| first countable space |subspace topology |-41

[@kajalgarg598]

Verynice teaching sir

[@rahulkumar-ee4dn]

thanku sir

[@maheshvishwakarma3281]

Thank you sir

[@priyanka3488]

Sir local base or countable basis same hai

[@mehakchauhan6619]

So confusing