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5.7 KiB
Coq layer
Description
This layer adds support for the Coq proof assistant (adapted from spacemacs-coq) to Spacemacs.
Features:
- Syntax highlighting
- Syntax-checking
- Auto-completion
- Debugging of mathematical proofs from within Emacs using a special proof layout
- Replacement of certain constants with the correct mathematical signs
- Inserting of certain preconfigured proof elements
Install
Layer
To use this configuration layer, add it to your ~/.spacemacs. You will need to
add coq to the existing dotspacemacs-configuration-layers list in this file.
Coq
Official installers for macOS and Windows are available from: https://coq.inria.fr/download.
Linux users can build from source or consult with their own package managers.
Troubleshooting
There are empty square boxes in place of math operators
Math symbols present in your buffer (e.g. forall exists) will attempt to be
prettified, if you are seeing empty square boxes this means an appropriate math
symbol cannot be found in your font. You can either install a appropriate math
font, or disable the feature by adding the following snippet to the your
dotspacemacs/user-config.
(with-eval-after-load 'company-coq
(add-to-list 'company-coq-disabled-features 'prettify-symbols))Key bindings
Laying out windows
| Key binding | Description |
|---|---|
SPC m l c |
Clear response buffer |
SPC m l l |
Re-layout windows |
SPC m l p |
Show current proof |
Managing prover process
| Key binding | Description |
|---|---|
SPC m p i |
Interrupt prover |
SPC m p p |
Process buffer - processes and moves point to end of buffer |
SPC m p q |
Quit prover |
SPC m p r |
Retract buffer - rewinds and moves point to beginning of buffer |
Getting documentation
| Key binding | Description |
|---|---|
SPC m h h |
Show documentation for whatever is below the cursor |
SPC m h e |
Show documentation for the error in the `*response*` buffer |
SPC m h E |
Browse all available documentation for errors |
Prover queries
The mnemonic for a is "ask".
| Key binding | Description |
|---|---|
SPC m a a |
|
SPC m a A |
Print (showing all) |
SPC m a b |
About |
SPC m a B |
About (showing all) |
SPC m a c |
Check |
SPC m a C |
Check (showing all) |
SPC m a f |
Search (mnemonic: "find theorems") |
SPC m a i b |
About (showing implicits) |
SPC m a i c |
Check (showing implicits) |
SPC m a i i |
Print (showing implicits) |
SPC m a o |
Show an outline of the current proof script |
Moving the point
| Key binding | Description |
|---|---|
SPC m g e |
Go to end of command at point |
SPC m g g |
Go to definition at point |
SPC m g l |
Go to last processed command |
SPC m g s |
Go to start of command at point |
Inserting
| Key binding | Description |
|---|---|
SPC m M-RET |
Insert regular match branch |
SPC m M-S-RET |
Insert match goal with branch |
SPC m i c |
Insert a vernacular command |
SPC m i e |
Insert End <section-name> |
SPC m i i |
Insert intros with default variable names |
SPC m i l |
Extract lemma from current goal - exit with C-RET (not C-j) |
SPC m i m |
Insert match on a type |
SPC m i r |
Insert a Require statement |
SPC m i s |
Insert a Section or Module |
SPC m i t |
Insert a tactic |
SPC m i T |
Insert a tactical |
Note the last two are regular company-coq bindings, left alone since they are
most useful in insert mode. The full company-coq tutorial showcasing all
available company-coq key bindings can be accessed at any time using SPC SPC
company-coq-tutorial.