In German mathematics, the expression ‘Zu zeigen’ exists, which translates to ‘to show’. It is used at the beginning of proofs (or the answers to exercises) to state what exactly will be shown in the following paragraph(s), for example:
Z.z.: Für jedes
a,breell existiert ein
‘Zu zeigen’ is often abbreviated as ‘Z.z.’, even Latex code exists to implement a nice ‘zu zeigen’ in one’s proofs.
My question is whether a similar short statement, ideally with an accompanying abbreviation, exists in English.