[bug#40815] gnu: Add metamath

[elaexuotee--- via Guix-patches via <guix-patches@gnu.org>]

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> Note the book could also go into another package, once texlive-amsfonts is
> fixed.

Interesting. Either way it's a similarly sized patch, so I'm curious why a
"metamath-doc" packages would be preferable to a "metamath:doc" output.

> Meanwhile, I think we can remove the comments in this one and apply it.
> 
> WDYT?

Sure. You intuition on what is best for the repo is certainly more honed than
mine. Would you mind sharing your reasoning for deleting the comments though?
Not sure I see why.

My thinking was this: want want a "doc" output if possible; the work of
creating that is already done; so we might as well make that work available.
Are you mostly trying to avoid comment clutter?

Either way, the patch I included here strips out the comments.

> I don't have enough knowledge to comment LaTeX packages. I suggest to
> submit them as separate issues. If still no one comments of them, I'll
> apply them later.

Great. I'll do that. Thanks.

Cheers!


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From 4d94ad11b0e998a9510708e088a4c5eb63919b3b Mon Sep 17 00:00:00 2001
From: "B. Wilson" <elaexuotee@wilsonb.com>
Date: Mon, 11 May 2020 20:10:48 +0900
Subject: [PATCH] gnu: Add metamath.
To: guix-patches@gnu.org

* gnu/packages/maths.scm (metamath): New variable.
---
 gnu/packages/maths.scm | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/gnu/packages/maths.scm b/gnu/packages/maths.scm
index 45d699e39c..02109ced2d 100644
--- a/gnu/packages/maths.scm
+++ b/gnu/packages/maths.scm
@@ -38,6 +38,7 @@
 ;;; Copyright © 2020 R Veera Kumar <vkor@vkten.in>
 ;;; Copyright © 2020 Vincent Legoll <vincent.legoll@gmail.com>
 ;;; Copyright © 2020 Nicolò Balzarotti <nicolo@nixo.xyz>
+;;; Copyright © 2020 B. Wilson <elaexuotee@wilsonb.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -5686,3 +5687,39 @@ and conversions, physical constants, symbolic calculations (including
 integrals and equations), arbitrary precision, uncertainity propagation,
 interval arithmetic, plotting.")
     (license license:gpl2+)))
+
+(define-public metamath
+  ;; Upstream pushed a commit on top of v0.182 that fixes a bug in Makefile.am.
+  ;; Using this commit lets us avoid directly including the patch here.  In the
+  ;; next version bump, we should be able to replace this and directly use the
+  ;; version tag.
+  (let ((commit "5df616efe4119ff88daf77e7041d45b6fa39c578")
+        (revision "0")
+        (book-name "metamath-book")
+        (book-version "second_edition"))
+    (package
+      (name "metamath")
+      (version (git-version "0.182" revision commit))
+      (source
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "https://github.com/metamath/metamath-exe.git")
+               (commit commit)))
+         (sha256
+          (base32 "0amjdgy42c7jypf6sz98iczlxcyl9bqx67ws1q8w2zdqk2izsyjp"))
+         (file-name (git-file-name name version))))
+      (build-system gnu-build-system)
+      (native-inputs `(("autoconf" ,autoconf)
+                       ("automake" ,automake)))
+      (home-page "http://us.metamath.org/")
+      (synopsis "Proof verifier based on a minimalistic formalism")
+      (description "Metamath is a tiny formal language and that can express
+theorems in abstract mathematics, with an accompyaning @code{metamath}
+executable that verifies databases of these proofs.  There is a public
+database, @url{https://github.com/metamath/set.mm, set.mm}, implementing
+first-order logic and Zermelo-Frenkel set theory with Choice, along with a
+large swath of associated, high-level theorems, e.g.@: the Fundamental Theorem
+of Arithmetic, the Cauchy-Schwarz Inequality, Striling's Formula, etc.  See the
+Metamath book.")
+      (license license:gpl2+))))
-- 
2.27.0


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