Must opposites be mutually exclusive?

notfred

Lifer
Feb 12, 2001
38,241
4
0
It is possible for an object to possess two opposite properties, or must all opposite properties be mutually exclusive of one another?

It's impossible for water to be both hot and cold, or for a person to be both tall and short. Is this the case for all opposite properties?

Discuss.
 

iamwiz82

Lifer
Jan 10, 2001
30,772
13
81
Tall and short are relative. I am tall compared to a midget yet short compared to Manute Bol.
 

EmperorIQ

Platinum Member
Sep 30, 2003
2,003
0
0
-x and +x, they are opposite of each other but they both are the same distance away from point 0.

oh and dry ice?
 

trilks

Golden Member
Aug 16, 2002
1,117
0
0
Originally posted by: iamwiz82
Tall and short are relative. I am tall compared to a midget yet short compared to Manute Bol.

Indeed. In that sense you can be both short and tall, water hot and cold. Relativity, baby.
 

Drakkon

Diamond Member
Aug 14, 2001
8,401
1
0
Two events are mutually exclusive when the occurrence of one precludes the occurrence of the other or in the case of objects at most 1 can be called on at any time
so yes i would think that objects cannot poses mutually exclusive proteries (i.e. being tall and short, or hot and cold)
 

notfred

Lifer
Feb 12, 2001
38,241
4
0
Originally posted by: Drakkon
Two events are mutually exclusive when the occurrence of one precludes the occurrence of the other or in the case of objects at most 1 can be called on at any time
so yes i would think that objects cannot poses mutually exclusive proteries (i.e. being tall and short, or hot and cold)

Of course an object cannot posess two mutually exclusive properties: that's the definition of mutually exclusive. The question is whether or not opposite propertiues are mutually exclusive.
 

Descartes

Lifer
Oct 10, 1999
13,968
2
0
Well, the same body of water can be both hot and cold, but it's not as though there's some discrete separation between hot and cold parts (unless you have a battle suspended in the fluid or something). Applying a dichotomy of extremes is merely for convenience, and where you place is the extremes is arbitrary.

imo
 

hop12

Member
Oct 5, 2004
95
0
0
That also brings up the question of opposite proporties...what proporties are truly opposite? Is hot the opposite of cold, tall the opposite of short?
 

notfred

Lifer
Feb 12, 2001
38,241
4
0
Originally posted by: hop12
That also brings up the question of opposite proporties...what proporties are truly opposite? Is hot the opposite of cold, tall the opposite of short?

Well, if opposites are mutually exclusive properties, then that in itself is a definition of opposite.
 

Descartes

Lifer
Oct 10, 1999
13,968
2
0
Originally posted by: notfred
Originally posted by: Drakkon
Two events are mutually exclusive when the occurrence of one precludes the occurrence of the other or in the case of objects at most 1 can be called on at any time
so yes i would think that objects cannot poses mutually exclusive proteries (i.e. being tall and short, or hot and cold)

Of course an object cannot posess two mutually exclusive properties: that's the definition of mutually exclusive. The question is whether or not opposite propertiues are mutually exclusive.

Hmm. I might then ask the question of whether or not the properties exist independent of the observer? For example, many interpretations of quantum theory suggest that a given entity hasn't these properties until observed; rather, it exists in a superstate until measured, and then it has the properties. The uncertainty principle dictates that the properties can't be realized with the same precision as well.

Anyway, the ideas are similar I believe. I think the real question is how you define reality; does it exist independent of your measurements, or do the measurements create the reality? I think if you break the question down further and say, "Can the kinetic energy of a given molecule of water be more than one value?" then the question is obviously no.
 

jagec

Lifer
Apr 30, 2004
24,442
6
81
Originally posted by: EmperorIQ
-x and +x, they are opposite of each other but they both are the same distance away from point 0.

oh and dry ice?

how is "dry ice" a contradiction in terms?
 

ViRGE

Elite Member, Moderator Emeritus
Oct 9, 1999
31,516
167
106
Originally posted by: hop12
That also brings up the question of opposite proporties...what proporties are truly opposite? Is hot the opposite of cold, tall the opposite of short?
And what about warm, isn't that hot and cold?
 
Nov 5, 2001
18,366
3
0
Originally posted by: jagec
Originally posted by: EmperorIQ
-x and +x, they are opposite of each other but they both are the same distance away from point 0.

oh and dry ice?

how is "dry ice" a contradiction in terms?



we're not talking about oxymorons....
 

notfred

Lifer
Feb 12, 2001
38,241
4
0
Originally posted by: ViRGE
Originally posted by: hop12
That also brings up the question of opposite proporties...what proporties are truly opposite? Is hot the opposite of cold, tall the opposite of short?
And what about warm, isn't that hot and cold?

I would say that it's neither.