vice versa
vice versa /ˌvaɪsˈvɜː.sə/ US /ˌvaɪ.səˈvɝː-/ (adv)
the other way around, conversely, on the other hand, in opposition, in contrast, contrariwise:
Not always does affluence effect jubilation, and vice versa, however.
The dilemma of “Which came first, the chicken or the egg?” denotes that having a chicken is a sine qua non for having an egg, and vice versa.
