Lemma 7.6: Difference between revisions

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Created page with "This page proves a lemma for the m=13 case of FUNC. ==Lemma 7.6:== If <math>\mathcal{A}</math> contains a size 5 set, then <math>\mathcal{A}</math> is Frankl's. WLOG le..."
 
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If <math>\mathcal{A}</math> contains a size 5 set, then <math>\mathcal{A}</math> is Frankl's.
If <math>\mathcal{A}</math> contains a size 5 set, then <math>\mathcal{A}</math> is Frankl's.


WLOG let that set be 12345. Let w(x)=6 is x=1, 2, 3, 4, 5 and w(x)=1 otherwise. The target weight is 35.
WLOG let that set be 12345. Let w(x)=6 is x=1,2,3,4, or 5 and w(x)=1 otherwise. The target weight is 35.


==|K|=0:==
==|K|=0:==

Revision as of 00:13, 2 December 2016

This page proves a lemma for the m=13 case of FUNC.

Lemma 7.6:

If [math]\displaystyle{ \mathcal{A} }[/math] contains a size 5 set, then [math]\displaystyle{ \mathcal{A} }[/math] is Frankl's.

WLOG let that set be 12345. Let w(x)=6 is x=1,2,3,4, or 5 and w(x)=1 otherwise. The target weight is 35.

|K|=0:

In this case there are only two sets, the empty set and the full set 12345. The deficit is therefore 35+5=40.

|K|=1:

The only possible set in this case is the [math]\displaystyle{ C_5 }[/math] sets 12345 (as any smaller sets would violate the assumption).

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