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 November 21st, 2017, 02:34 AM #1 Senior Member   Joined: Nov 2011 Posts: 170 Thanks: 2 enternity/infinity What's the difference between eternity to infinity in math? Last edited by skipjack; November 24th, 2017 at 10:57 AM.
 November 21st, 2017, 02:48 AM #2 Senior Member   Joined: Feb 2016 From: Australia Posts: 1,460 Thanks: 489 Math Focus: Yet to find out. I'm not sure eternity is a mathematical term. There wouldn't be a need for it either, since in a mathematical context we could just say something like "bla bla, as time 'goes to' infinity".. In plain english, the words are similar, but eternity means 'unending time', whereas infinity is just any unmeasurable quantity. Thanks from v8archie
 November 21st, 2017, 02:55 AM #3 Senior Member   Joined: Nov 2011 Posts: 170 Thanks: 2 No. I think there is also a mathematical difference. I think in math there is different meaning to each other. Or somebody fix me and say that what you see it right. Last edited by skipjack; November 24th, 2017 at 10:58 AM.
 November 21st, 2017, 03:26 AM #4 Math Team   Joined: Dec 2013 From: Colombia Posts: 7,091 Thanks: 2360 Math Focus: Mainly analysis and algebra I've never heard of "eternity" being used as a mathematical term.
 November 21st, 2017, 03:32 AM #5 Senior Member   Joined: Nov 2011 Posts: 170 Thanks: 2 O.K. What other people say? Thank you to both of you...!!! Last edited by shaharhada; November 21st, 2017 at 03:40 AM.
 November 21st, 2017, 04:21 AM #6 Senior Member   Joined: Feb 2016 From: Australia Posts: 1,460 Thanks: 489 Math Focus: Yet to find out. It might help if you provide some context.
November 21st, 2017, 06:15 AM   #7
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Quote:
 Originally Posted by shaharhada No. I think there is also a mathematical difference. I think in math there is different meaning to each other. Or somebody fix me and say that what you see it right.
Like Archie, I have never seen "eternity" used as a mathematical term in any English text written by any mathematician, let alone one who is a native speaker of English. Your claim that "eternity" is used as a mathematical term requires at least ONE example IN CONTEXT before anyone can give you an answer. In addition to the example itself, please cite the name of the text, the name of the author, and the location of publication because we need to know whether the author and editor are both native speakers of English.

Last edited by skipjack; November 24th, 2017 at 10:58 AM.

November 21st, 2017, 07:26 AM   #8
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Both eternity and infinity can convey the meaning of very large or boundless.

However eternity is not a mathematical term.
Further it is only applied to time.
So all eternity is unbounded time.
But an eternity ring lasts for as much time as is left to the happy couple.

Infinity or infinite is used in Science generally to mean any quantity - distance, time, mass, energy, .......... that is either overwhelmingly large or actually transfinite (unbounded).

The strict mathematical term for an unbounded is transfinite, not infinite.

This symbol $\displaystyle \infty$ represents a transfinite number.

Infinity

Brian Clegg

It is a reasonable popsci book about the philosophy of infinity.

Quote:
 The toast rack is at infinity. This referred to a nearby building, part of Manchester College. This building was shaped like a toast rack. So that is what it was called. We used the bricks of this structure to focus optical instruments when I was studying Physics. What we meant by that was that the building was far enough away to pretend it was infinitely distant.

 November 21st, 2017, 08:28 AM #9 Senior Member   Joined: Nov 2011 Posts: 170 Thanks: 2 Thank you!!! I think the article is not professional and thank you on correcting me. If [or Iff] somebody write garbage and write it in a paper for teachers that called Kesher Ham (Hot Bond), it still garbage and no more than that. Thank you!!! The name is abbreviation for a Hebrew sentence, but this thing is a garbage and thank you for your answers. Last edited by skipjack; November 24th, 2017 at 11:01 AM.
 November 24th, 2017, 06:00 AM #10 Member   Joined: Feb 2017 From: Canada Posts: 34 Thanks: 1 This is a very cool topic...Both terms Eternity and Infinity are terms that touch the periphery of a starting point. They are defined by that starting point and each has a matrix on its own. Infinity is incrementing and eternity is uniform. I think that both terms were never defined properly but a way to start defining them beyond the villagers brain is in a tread like this one. If you take a sliding knob infinity would only go in one direction and eternity would be defined by sliding that knob up and down constantly.

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