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Intersection(FiniteSet(x), FiniteSet(y)) shouldn't be EmptySet #8217

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skirpichev opened this Issue Oct 9, 2014 · 1 comment

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skirpichev commented Oct 9, 2014

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@skirpichev skirpichev added the sets label Oct 9, 2014

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skirpichev commented Oct 9, 2014

On Thu, Oct 09, 2014 at 10:17:50AM -0700, ck Lux wrote:

{x} ∩ {y} != Ø ?

Sure. E.g. if both x and y = 1.

hargup referenced this issue in hargup/sympy Nov 11, 2014

skirpichev added a commit to diofant/diofant that referenced this issue Mar 1, 2015

Improve evaluation of Intersection's for FiniteSet with symbolic elem…
…ents

For example, now FiniteSet(x).intersect(Reals) is NOT EmptySet.

fixes sympy/sympy#8217

skirpichev added a commit to diofant/diofant that referenced this issue May 16, 2015

Improve evaluation of Intersection's for FiniteSet with symbolic elem…
…ents

For example, now FiniteSet(x).intersect(Reals) is NOT EmptySet.

fixes sympy/sympy#8217

aktech added a commit to aktech/sympy that referenced this issue Jun 18, 2015

Improve evaluation of Intersection's for FiniteSet with symbolic elem…
…ents

For example, now FiniteSet(x).intersect(Reals) is NOT EmptySet.

fixes sympy#8217

skirpichev added a commit to diofant/diofant that referenced this issue Jun 23, 2015

Improve evaluation of Intersection's for FiniteSet with symbolic elem…
…ents

For example, now FiniteSet(x).intersect(Reals) is NOT EmptySet.

fixes sympy/sympy#8217

aktech added a commit to aktech/sympy that referenced this issue Jun 28, 2015

Improve evaluation of Intersection's for FiniteSet with symbolic elem…
…ents

For example, now FiniteSet(x).intersect(Reals) is NOT EmptySet.

fixes sympy#8217

aktech added a commit to aktech/sympy that referenced this issue Jun 29, 2015

Improve evaluation of Intersection's for FiniteSet with symbolic elem…
…ents

For example, now FiniteSet(x).intersect(Reals) is NOT EmptySet.

fixes sympy#8217

aktech added a commit to aktech/sympy that referenced this issue Jul 2, 2015

Improve evaluation of Intersection's for FiniteSet with symbolic elem…
…ents

For example, now FiniteSet(x).intersect(Reals) is NOT EmptySet.

fixes sympy#8217

@hargup hargup closed this in #9540 Jul 3, 2015

skirpichev added a commit to diofant/diofant that referenced this issue Jul 19, 2015

Improve evaluation of Intersection's for FiniteSet with symbolic elem…
…ents

For example, now FiniteSet(x).intersect(Reals) is NOT EmptySet.

fixes sympy/sympy#8217

skirpichev added a commit to diofant/diofant that referenced this issue Aug 2, 2015

Improve evaluation of Intersection's for FiniteSet with symbolic elem…
…ents

For example, now FiniteSet(x).intersect(Reals) is NOT EmptySet.

fixes sympy/sympy#8217

skirpichev added a commit to diofant/diofant that referenced this issue Aug 2, 2015

Improve evaluation of Intersection's for FiniteSet with symbolic elem…
…ents

For example, now FiniteSet(x).intersect(Reals) is NOT EmptySet.

fixes sympy/sympy#8217

skirpichev added a commit to diofant/diofant that referenced this issue Oct 2, 2015

Improve evaluation of Intersection's for FiniteSet with symbolic elem…
…ents

For example, now FiniteSet(x).intersect(Reals) is NOT EmptySet.

fixes sympy/sympy#8217

skirpichev added a commit to diofant/diofant that referenced this issue Dec 16, 2015

Improve evaluation of Intersection's for FiniteSet with symbolic elem…
…ents

For example, now FiniteSet(x).intersect(Reals) is NOT EmptySet.

fixes sympy/sympy#8217

skirpichev added a commit to diofant/diofant that referenced this issue Dec 17, 2015

Improve evaluation of Intersection's for FiniteSet with symbolic elem…
…ents

For example, now FiniteSet(x).intersect(Reals) is NOT EmptySet.

fixes sympy/sympy#8217

skirpichev added a commit to diofant/diofant that referenced this issue Jan 19, 2016

Improve evaluation of Intersection's for FiniteSet with symbolic elem…
…ents

For example, now FiniteSet(x).intersect(Reals) is NOT EmptySet.

fixes sympy/sympy#8217

skirpichev added a commit to diofant/diofant that referenced this issue Mar 30, 2016

Improve evaluation of Intersection's for FiniteSet with symbolic elem…
…ents

For example, now FiniteSet(x).intersect(Reals) is NOT EmptySet.

fixes sympy/sympy#8217
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