# Btw. I found 8 possibilities to concat atoms in Swi Prolog

**URL:** <https://swi-prolog.discourse.group/t/btw-i-found-8-possibilities-to-concat-atoms-in-swi-prolog/5157>\
**Category:** Nice to know\
**Created:** [March 22, 2022, 8:35pm UTC](https://swi-prolog.discourse.group/t/btw-i-found-8-possibilities-to-concat-atoms-in-swi-prolog/5157 "2022-03-22T20:35:28Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![EricGT](https://avatars.discourse-cdn.com/v4/letter/e/f1d935/32.png) [@EricGT](https://swi-prolog.discourse.group/u/EricGT)\
**Post date:** [March 22, 2022, 10:08pm UTC](https://swi-prolog.discourse.group/t/btw-i-found-8-possibilities-to-concat-atoms-in-swi-prolog/5157/2 "2022-03-22T22:08:41Z")

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> [@Frank\_Schwidom](#):
>
> I would appreciate it if I coud figure out which meta information are available for a predicate.

Have you seen

> **[SWI-Prolog XREF --- Cross-Referencing Tool](https://www.swi-prolog.org/gxref.html)**

Don’t forget to look at the code that implements it for other ideas.

Also

[List the properties for predicate(s)](https://swi-prolog.discourse.group/t/list-the-properties-for-predicate-s/2776)

HTH

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