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Description
Computability Theory and Foundations of MathematicsThis volume features the latest scientific developments in the fields of computability theory and logical foundations of mathematics as well as applications. The scope involves the topics of Computability Theory, Reverse Mathematics, Nonstandard Analysis, Proof Theory, Set Theory, Philosophy of Mathematics, Constructive Mathematics, Theory of Randomness and Computational Complexity Theory.
This volume features the latest scientific developments in the fields of computability theory and logical foundations of mathematics as well as applications. The scope involves the topics of Computability Theory, Reverse Mathematics, Nonstandard Analysis, Proof Theory, Set Theory, Philosophy of Mathematics, Constructive Mathematics, Theory of Randomness and Computational Complexity Theory.
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4.9 ★★★★★
Based on 2400 reviews
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Product Reviews
★★★★★ 5
Such a pretty bottle and it feels so great on skin!
Size: 1.7 Fl Oz (Pack of 1), Size: 1.7 Fl Oz (Pack of 1)
I was so excited to try this serum, and honestly, it did not disappoint. What first caught my eye was the packaging—I’m a sucker for pretty bottles, and this one is stunning with its shimmery, rainbow-like colors. Even the serum itself has a subtle shimmer that matches the bottle, which I absolutely love.
The scent was the first thing I noticed. It has a light floral smell with a hint of honey, almost like a soft version of the old Sweet Pea scent from Bath & Body Works. It’s not overpowering at all. You only really smell it when dispensing or applying it—once it’s on your skin, the scent completely disappears. No headaches, no lingering fragrance.
Application-wise, this serum is silky smooth and spreads beautifully. It made me realize my skin wasn’t as soft as I thought—because after using this, my skin felt noticeably softer, hydrated, and plump. It absorbs well and leaves my skin feeling nourished without being greasy.
It does contain retinol, so the warnings about avoiding the eye area and limiting sun exposure are important. I’ll definitely be pairing this with a good hydrating sunscreen, especially during daytime use. I plan to ease into it by using it once or twice a week until my skin fully adjusts.
Overall, I love everything about this serum—the packaging, the light scent, the texture, and the results. My skin feels smooth, hydrated, and healthy. This is definitely a product I’m excited to keep using and would happily recommend.
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Reviewed in the United States on January 11, 2026
★★★★★ 5
The best serum!
Size: 1 Fl Oz (Pack of 1)
This is the best face serum, and the price is unbeatable. It makes my face feel silky smooth and hydrated for the whole day. I will not use anything else.
Plus, it smells good. Highly recommend!
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Reviewed in the United States on May 27, 2026
★★★★★ 5
Smells great and silky smooth
Size: 1 Fl Oz (Pack of 1)
⭐️⭐️⭐️⭐️⭐️
I’ve been using the Olay Super Serum for a few weeks now and I’m honestly impressed with how much it does in one step. My skin looks noticeably brighter and more even, and it feels super hydrated without being greasy or heavy. It absorbs quickly, which I love because I can layer moisturizer and makeup right after without any pilling.
The texture is silky and lightweight, and a little goes a long way. I’ve also noticed my skin feels smoother and a bit firmer, especially around my cheeks. It gives a really nice healthy glow that looks natural, not shiny.
If I had to mention one small thing, it’s that you need to use sunscreen during the day since it contains AHA — but that’s expected with brightening products anyway.
Overall, this is a great all-in-one serum if you want brighter, smoother, more hydrated skin without using a bunch of separate products. I’d definitely repurchase and recommend it for anyone looking to simplify their skincare routine while still getting real results.
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Reviewed in the United States on March 2, 2026
★★★★★ 4
Yes
Size: 1.7 Fl Oz (Pack of 1)
Happy with this purchase
Very light on face , scent is light and fresh
Leaves my skin soft , hydrated and moisturized
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Reviewed in the United States on May 22, 2026
★★★★★ 5
Miraculous and so inexpensive!
Size: 1.7 Fl Oz (Pack of 1)
This stuff is amazing! I am getting benefits I never dreamed…I have only had it 3 days but had to report my immediate results!
I have a patch of seborrhea on my left eyelid that is an annoyance daily. I tried this serum on my eye and no burning or stinging. No irritation at all! I put my makeup on and thought little more of it. At the end of the day, no dry flaky patch or makeup issues there at all! No eye itching or irritation all day! This is something I thought I just had to live with.
As for the general serum I think the lines around my eyes are less prominent and my skin feels soft and moisturized.
And last I love the large bottle! Great value! And I am not embarrassed to have the bottle sitting on my sink…
Overall I think it is liquid gold for a bargain price! Will definitely buy again. Truly unexpected miracle in a bottle!
Highly recommend.
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Reviewed in the United States on January 22, 2026