N.Y. Estates, Powers & Trusts Law Section 6-5.11
Non-destructibility of remainders subject to a condition

6‑5.1
Characteristics of future estates 6‑5.2
Power of appointment not to prevent vesting 6‑5.3
Future estates in the alternative 6‑5.4
Implication of cross remainders between tenants in common 6‑5.5
Future estate valid though contingency improbable 6‑5.6
Meaning of heirs, distributees and issue in certain remainders 6‑5.7
Posthumous children 6‑5.8
Heirs or distributees of life tenant take as purchasers 6‑5.9
Heirs or distributees of creator take as purchasers 6‑5.10
When future estates are defeated 6‑5.11
Non-destructibility of remainders subject to a condition 6‑5.12
Future rents and profits subject to rules governing future