My Math Forum Grandfather paradox solution hypothesis

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 December 5th, 2017, 10:15 AM #1 Newbie   Joined: Dec 2017 From: India Posts: 13 Thanks: 0 Solution for the grandfather paradox — What will happen if a person goes back in time and kills his grandfather before the grandfather was married? This question creates a paradox because if the person eliminates his grandfather then he will not exist in the first place to eliminate his grandfather, and if the person did not exist then the grandfather was eliminated by none, if this is the case, the person will exist to eliminate his grandfather and thus we are back to the same square. Before I present my hypothesis about the solution of grandfather paradox, I would like to make two new terms - Kshan - the time duration and "location" in time in which the tiniest amount of change comes into existence. (Henceforth shortened to "K") Sthit - a term used to pinpoint the K in the timeline on which we currently exist, it shifts to a new K in each period of one K. When a Sthit shifts to a new K, it passes the effects of the previous K to the new one, resulting in a new change to come in existence in the new K that is the result of the conditions of the previous K. (Henceforth shortened to S). My solution for grandfather paradox is like this – First, we will mark the K in which the person landed in past to eliminate his grandfather as a, the K in which he went to the past as b, the S of the person as o, and the S of the person in the past as if he belongs to the past as i. Now, when the person lands in a his i starts advancing and the S one K ago from a (will be marked as l) comes to a and transforms it like artificial interference from the future never happened. The person will eliminate his grandfather and will return to o, and in o, there will be no change at all. When l is in a, the S one K ago from b comes in b, time travel occurs again, resulting the K in which l is in to be interfered from the future. This process repeats until l reaches one K ago from b, and when the l reaches b, a doesn't get changed again due to interference from the future. Thus, there is a time period between a + 1 K to b. When the time period travels through the timeline, the K's that fall within it has an existence as if grandfather was eliminated, and the timeline exclusion (from a) that doesn't fall within that time period has an existence without the elimination of grandfather. When this time period will have passed through b completely, the process of interference will start again, a similar timeline will be formed, and the overall process will repeat infinitely until somebody or something interferes in this process. Reference https://www.physicsforums.com/thread...hanics.933327/ Last edited by skipjack; February 20th, 2018 at 10:34 PM.
 December 5th, 2017, 04:16 PM #2 Senior Member   Joined: May 2016 From: USA Posts: 1,310 Thanks: 551 If A is true, then B is true and B is not true implies that A is false. There is NO paradox.
December 5th, 2017, 11:35 PM   #3
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Quote:
 Neonus there is
Herein lies the key to your difficulty.

The phrase "there exists" or "there is" has quite a different meaning in Mathematics (including Logic) from its meaning in Physics.

You can't combine the separate meanings to form a (logical) paradox.

Mathematics disregards time, so when we assert in Mathematics

There exists or there is a number we call 3 it doesn't matter whether we are talking about 5000 BC or 5000 AD or today or any other when.

December 6th, 2017, 10:41 AM   #4
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 Originally Posted by JeffM1 If A is true, then B is true and B is not true implies that A is false. There is NO paradox.
What do you want to address by "A" and "B"?

December 6th, 2017, 10:41 AM   #5
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 Originally Posted by studiot Herein lies the key to your difficulty. The phrase "there exists" or "there is" has quite a different meaning in Mathematics (including Logic) from its meaning in Physics. You can't combine the separate meanings to form a (logical) paradox. Mathematics disregards time, so when we assert in Mathematics There exists or there is a number we call 3 it doesn't matter whether we are talking about 5000 BC or 5000 AD or today or any other when.
I cannot understand your description fully. Please give an example sentence containing "there is" or "there exists" that means differently through physics and mathematical point of view to help me better understand.

December 6th, 2017, 10:42 AM   #6
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 Originally Posted by Knowledgesearcher Decide how do you want to solve the paradox, from the point of view of physics, math or logic. The solution may be different according to different scientific point of view.
Thank you for highlighting this point.

 December 6th, 2017, 12:22 PM #7 Senior Member   Joined: Jun 2014 From: USA Posts: 525 Thanks: 40 Ever play the original Final Fantasy for Nintendo? I'm pretty sure they solved the paradox in that. https://www.gamefaqs.com/boards/6058...ntasy/58570310 Thanks from Benit13
December 6th, 2017, 12:40 PM   #8
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 Originally Posted by Neonus What do you want to address by "A" and "B"?
A = "a person went back in time and killed his grandfather when the grandfather was 2 years old."

B = "the person who went back in time was born."

not B = "the person who went back in time was not born."

If A is true, the person who went back in time and killed his grandfather while the grandfather was incapable of fathering anyone must have been alive and so was born.

If A is true, the person who went back in time and killed his grandfather while the grandfather was incapable of fathering anyone could never have been born and so was not born.

If A is true, B is true and not B is true. Therefore A is false. There is no paradox.

 December 6th, 2017, 11:24 PM #9 Senior Member   Joined: Apr 2014 From: UK Posts: 919 Thanks: 331 That implies the only way to avoid a paradox is if going back in time isn't possible.
 December 6th, 2017, 11:50 PM #10 Senior Member   Joined: Nov 2011 Posts: 250 Thanks: 3 Decart said: "If I think, I alive"; also, if you kill your father/grandfather in preteen years.

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