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Description
Introduction to the Theory of SetsSet theory permeates much of contemporary mathematical thought. This text for undergraduates offers a natural introduction, developing the subject through observations of the physical world. Its progressive development leads from concrete finite sets to cardinal numbers, infinite cardinals, and ordinals. Although set theory begins in the intuitive and the concrete, it ascends to a very high degree of abstraction. All that is necessary to its grasp,
Set theory permeates much of contemporary mathematical thought. This text for undergraduates offers a natural introduction, developing the subject through observations of the physical world. Its progressive development leads from concrete finite sets to cardinal numbers, infinite cardinals, and ordinals.Although set theory begins in the intuitive and the concrete, it ascends to a very high degree of abstraction. All that is necessary to its grasp, declares author Joseph Breuer, is patience. Breuer illustrates the grounding of finite sets in arithmetic, permutations, and combinations, which provides the terminology and symbolism for further study. Discussions of general theory lead to a study of ordered sets, concluding with a look at the paradoxes of set theory and the nature of formalism and intuitionalism. Answers to exercises incorporated throughout the text appear at the end, along with an appendix featuring glossaries and other helpful information.
Binding Type: Paperback
Publisher: Dover Publications
Published: 07/28/2006
ISBN: 9780486453101
Pages: 108
Weight: 0.31lbs
Size: 8.58h x 5.46w x 0.26d
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★★★★★ 5
Great Smell and No Mess Sunscreen
Style: SPF 50, Size: 5 Fl Oz (Pack of 1)
Love the smell and it brings great memories. Anytime we go to the beach or pool, this is very easy to apply and no mess. I love this sunscreen and would recommend!
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Reviewed in the United States on January 23, 2026
★★★★★ 5
No sun burn
Style: SPF 50, Size: 5 Fl Oz (Pack of 1)
Last and last
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Reviewed in the United States on June 7, 2026
★★★★★ 4
good spray, but strong alcohol smell
Style: SPF 50, Size: 5 Fl Oz (Pack of 1)
I like Alba Botanica, but 3.5 starts since:
- the spray goes way too fast (that can be true for all continuous sprays). I used it 4 - 5 times and it seems I have very little left.
- lots of waste when spraying... probably is best to spray your palm and then massage it on your body
- once it's sprayed it smells like alcohol, alot!!! Other brands I tried don't seem to smell so much of alcohol.
- My kid developed strange rash once it was applied, not red dots, but white bumps all over the arms and legs, cannot say its from this spray, but I'm a bit suspicious.
The good party it's it is not sticky or greasy.
Smells good (after alcohol evaporates).
I used it a couple of times, applied once only and stay several hours under the sun and I was fine, no sunburn.
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Reviewed in the United States on June 20, 2016
★★★★★ 5
Love it!
Style: SPF 50, Size: 5 Fl Oz (Pack of 1)
Love this stuff and it's cruelty free!!
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Reviewed in the United States on April 4, 2026
★★★★★ 1
Alba packaging stinks
Style: SPF 50, Size: 5 Fl Oz (Pack of 1)
Complete waste of money! I ended up tossing it out because it’s IMPOSSIBLE to use. You should be able to twist the top to lock/unlock and spray it. NOPE. The top just spins and doesn’t catch or you cannot twist it at all. It’s also virtually impossible to spray. I had to hold it against my torso and press with both thumbs to get it to spray. Meanwhile, it’s leaking, the bottle is getting slippery. And then the spray goes EVERYWHERE, it’s not a narrow spray but it’s as if you’re dusting crops. I tried to see if it needed a certain pressure point, two fingers, bloody hell it’s not a Magic Mouse you should be able to unlock and spray it with one hand.
Anyway, Alba needs to do some QC on their packaging. The last pump lotion I got, the pump also did not work. It just spun and spun and could not be unlocked. I had to wash and reuse the pump from an old bottle.
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Reviewed in the United States on June 21, 2024
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