## Subsets of Letters

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Buttons
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### Subsets of Letters

Identify each of the following subsets of the alphabet. Parentheses surround letters whose place in the set may be disputed. For instance, if I said "EJMN(P)SUV," you would reply, "First initials of planets in the solar system." P would be in parentheses because reasonable people might argue about Pluto's place in this set. The elements of each set are given in alphabetical order. Sets are ordered approximately from easiest to hardest.

1: AEIOU(Y)
2: BCMNVXZ
3: BCDEGPTV(Z)
4: ABST
5: AHIMOTUVWXY
6: BCEGKMQSW
7: EGMPTYZ
8: CEFGHIJKLMNSTUVWXYZ
9: BCFHIKNOPSUVWY
10: CJMOR(S)V

Multiple answers probably exist, but all of the above can be summarized fairly succinctly.

Cauchy
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### Re: Subsets of Letters

I guess I'll clear out some of the these.

some answers wrote:1: AEIOU(Y) is "vowels." (Y is sometimes considered a consonant.)
2: BCMNVXZ is "letters on the bottom row of a QWERTY keyboard."
3: BCDEGPTV(Z) is "letters whose name rhymes with the word 'me.'" (Multiple pronunciations of Z exist; one of these rhymes.)
5: AHIMOTUVWXY is "letters whose capital version is symmetric about a vertical line."
9: BCFHIKNOPSUVWY is "letters which double as abbreviations for chemical elements."

gmalivuk
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1 wrote:Vowels, obviously.

2 wrote:The bottom row on a QWERTY keyboard. Which suggests that one or more of the others might relate to other keyboard layouts, but I'm not familiar with those and don't feel like looking them up at the moment.

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MFHodge
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12. CDILMVX (Easy)

jtniehof
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answer to 12 wrote:Characters used as Roman numerals

Cauchy
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more answers wrote:6: BCEGKMQSW is "letters whose index in the sequence 'ABC...Z' is a prime number."
11. ADEHINORST is "letters which are one of the ten most frequent letters in the English language."
12. CDILMVX is "letters which are also Roman numerals."

14. CQRXY (Hard?)
15. AEILNORSTU (Medium)

Hix
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Answer to #8 wrote:Uppercase letters that enclose no area

Answer to #13 wrote:Letters that can be "texted" with a single press of a button (i.e. the first letter listed on a touch-tone telephone button)

Answer to #15 wrote:Scrabble Value 1

#16: GJPQY (Difficulty 4/10)
#17: CQRZ (5/10, inspired by #14)

Pesto
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#18: IOSXZ

#19: ABCDFGHIJKMOPQUVWXYZ

skeptical scientist
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20) ACDFGHIKLMNOPRSTUVW
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Matthias
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19 wrote:Letters you can choose from in the final round of Wheel of Fortune
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quintopia
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### Re: Subsets of Letters

#21) BDEGHKLNPTUW (this list may be incomplete, but if it is, it would take me a long time to find out)

ptveite
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### Re: Subsets of Letters

22) BCDGIJLMNOPRSUVWZ

Nimz
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### Re: Subsets of Letters

23) ABCDEFGHIJKLMNOPQRSTUVWXYZ (insanely easy)
It had to be done, and it technically fits all the requirements

24) ACDEFGHIJKLMPQRVWXYZ (slightly harder)

25) DHNOPQTU (medium)

Lothar
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### Re: Subsets of Letters

26) BCDEFGIJKMNPQSUVWXYZ

related:

27) ABCDFGHIJKLMOPQRUXZ
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1+1=3 for large values of 1.

MFHodge
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### Re: Subsets of Letters

Lothar wrote:26) BCDEFGIJKMNPQSUVWXYZ

Spoiler:
The letters that are not used to spell "Lothar" (or "Harlot").

Lothar wrote:27) ABCDFGHIJKLMOPQRUXZ

Spoiler:
The letters that are not used to spell "Twenty Seven".

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### Re:

Hix wrote: #16: GJPQY (Difficulty 4/10)

Spoiler:
Letters that, when in lowercase, extend below the usual writing line (sorry, don't know how else to word it)

skeptical scientist wrote:20) ACDFGHIKLMNOPRSTUVW

Spoiler:
First letters of the fifty states of the US

PaulT
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### Re: Re:

Hix wrote: #16: GJPQY (Difficulty 4/10)

Spoiler:
Letters that, when in lowercase, extend below the usual writing line (sorry, don't know how else to word it)

Spoiler:
I think the technical term for those things is 'descenders'.

Here, I'll do one:

28: CJMORV

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### Re: Re:

PaulT wrote:Here, I'll do one:

28: CJMORV

Buttons wrote:10: CJMOR(S)V

PaulT
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### Re: Subsets of Letters

Oh. I looked through them all as well to check. Darn.

Edit: on the plus side, nobody seems to have posted a solution to 10, so I guess that means I've inadvertently solved it. So:

10 (and by extenstion 28):

Spoiler:
letters that are represented by people's names in the phonetic alphabet

quintopia
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### Re: Subsets of Letters

29: (A)EGKLMPXZ

Geekthras
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### Re: Subsets of Letters

30. NXDARO

(In no order)
Wait. With a SPOON?!

Sum Ergo Sum
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### Re: Subsets of Letters

ptveite wrote:22) BCDGIJLMNOPRSUVWZ

Spoiler:
Letters that can be written without lifting your pencil off the paper or retracing any lines

pesto wrote:#18: IOSXZ

Spoiler:
All have rotational symmetry.

31. CD(H)JKLM(N)QZ

quintopia
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### Re: Subsets of Letters

32. GPSVXZ(C)

^This one's way hard.