فرق و معنی این جملات چیست؟ آیا double negatives درست هستند؟

Question

1. I don't dislike that person = I like that person       ????????????????

2. He doesn't disagree = He agrees       ???????????

آیا این جملات معادل هم هستند یا کلا معانی متفاوت است؟؟؟ من که واقعا گیج شدم.

Answer 1

در بحث ترجمه به این راهکار negation of opposite گفته میشه. معنی یکسانه اما کاربرد متفاوته. یجا یکی ازت میپرسه فلان لباس چطوره میخوام اگه بشه حقوقمو دادن بخرمش- حالا نمیخوای مستقیم بگی «به نظرم زشته»، میگی «به نظرم خوشکل نیست». معنا یکیه ولی کاربرد فرق داره- مسلما چیزی که خوشکل نباشه زشته!

It does not seem unusual >> It's very normal

It does not look beautiful >> It looks ugly

Answer 2

Well, not necessarily! If someone doesn't hate you, it doesn't mean they love you! If a girl is not beautiful, she could be plain-looking or average-looking.

Imagine this: a boy from school that you haven't seen before asks you out. You, suprised by this, say 'Hmm, I'm not really sure.' The boy asks if you dislike him in some ways, 'Do you dislike me?', and you say, 'No, I didn't say I disliked you! I just don't know you! We just met!' 

So it's possible to talk about someone who neither dislikes nor likes you they just don't think about you much.