# Compare one list to everything in another list

**URL:** <https://forum.dynamobim.com/t/compare-one-list-to-everything-in-another-list/19388>\
**Category:** Lists-Logic\
**Tags:** dynamo\
**Created:** [February 23, 2018, 5:42pm UTC](https://forum.dynamobim.com/t/compare-one-list-to-everything-in-another-list/19388 "2018-02-23T17:42:18Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Kendrick.Cross](https://avatars.discourse-cdn.com/v4/letter/k/aeb1de/32.png) [@Kendrick.Cross](https://forum.dynamobim.com/u/Kendrick.Cross)\
**Post date:** [February 23, 2018, 5:42pm UTC](https://forum.dynamobim.com/t/compare-one-list-to-everything-in-another-list/19388/1 "2018-02-23T17:42:19Z")

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I want to take one list and compare it to everything in another list and return a true-false boolean,  
i know there is a node that will do it but i just can’t find it

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**Author:** ![ricardoperucci](https://avatars.discourse-cdn.com/v4/letter/r/ee7513/32.png) [@ricardoperucci](https://forum.dynamobim.com/u/ricardoperucci)\
**Post date:** [February 23, 2018, 7:11pm UTC](https://forum.dynamobim.com/t/compare-one-list-to-everything-in-another-list/19388/2 "2018-02-23T19:11:41Z")

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You can just change the node’s lacing to CrossProduct…

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<div class="post-metadata">

**Author:** ![Kendrick.Cross](https://avatars.discourse-cdn.com/v4/letter/k/aeb1de/32.png) [@Kendrick.Cross](https://forum.dynamobim.com/u/Kendrick.Cross)\
**Post date:** [February 23, 2018, 7:12pm UTC](https://forum.dynamobim.com/t/compare-one-list-to-everything-in-another-list/19388/3 "2018-02-23T19:12:56Z")

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yea i did that right after i posted thanks