Final answer:
Proof of Winston betraying Julia would involve actions or revelations that harm her, such as denouncing her to authorities, sharing confidential information, allying with her enemies, or shifting loyalty away from their shared ideals.
Step-by-step explanation:
To determine what would constitute a betrayal of Julia by Winston, one must understand the context in which these characters operate, which is within a narrative of trust and deception. Betrayal in a literary sense often involves a character breaking faith with another, typically by revealing secrets or collaborating with adversaries.
For Winston to betray Julia, actions such as denouncing her to the authorities, revealing any of their shared secrets, or aligning himself with her enemies would serve as proof of betrayal. This betrayal could be realized either through direct action or indirectly through attitudes and choices that undermine their established trust and collaborative efforts.
Proof of betrayal would likely involve a clear shift in behavior, definitive actions that harm Julia’s interests, or vocal denial of their connection. Any event or disclosure that exposes Julia to danger or undercuts the solidarity between them would be a valid indicator of Winston's betrayal. In a broader sense, betrayal can occur not only through actions but also through the adoption of ideologically opposed beliefs or abandonment of shared ideals.