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/sci/ - Science & Math


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14709716 No.14709716 [Reply] [Original]

>> No.14709722

>>14709716
reverse E is better

>> No.14709723

>>14709716
>the negation of "for all" is "there exists at least one" instead of "there exists none"
dosent sound so based at all

>> No.14709733

>>14709723
im never coming back to /sci/ again

>> No.14709735

>>14709723
dude

>> No.14709747
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14709747

>>14709723
10/10 would recreate math

>> No.14709748

>>14709723
kys

>> No.14709749

>>14709723
because there exists none is [math](\forall x) \sim[/math], which obviously is equivalent to [math]\sim (\exists x)[/math].

>> No.14709750

>>14709749
how you write the floppy line?

>> No.14709754

>>14709750
>floppy line
I'm dead

>> No.14709756

>>14709723
nice troll

>> No.14710051

>>14709723
brainlet

>> No.14710064

>>14709750
On a standard layout US keyboard it's to the left of the 1 key.

>> No.14710242

>>14709733
>>14709735
I don't get it. How are there exists and there is no not both compatible with the negation of for all

>> No.14710267

>>14710242
Nevermind I get it. That's dumb because it's only confusing because it's not normal speech but this system. (also not that anon)

>> No.14710578

>>14710242
>>14709723
The opposite of All, is None
For 1, is the most specific signifyer of uniqueness it would seem

>> No.14710766

>>14709754
the worm? what do you want me to call it?

>> No.14711513

>>14710267
i also thought of that too at first i even felt like a brainlet because people acted like it wasnt the correct way of interpreting it

>> No.14711535

>>14709723
Eh? The negation of "P for all X" is "~P for some X".

>> No.14711549

>>14710766
the bow tie

>> No.14711625

>>14710242
It's either there doesn't exist element that satisfies stated condition or there exists element that doesn't satisfy condition. The second one is a counter proof method rather then direct statement complement