2021-09-16  Masaya Tojo  <masaya@tojo.tokyo>

	Replace from core-system/equal to core-system/equal-t-nil.

	fixup!

	Add `*~` to `.gitignore` file.

	Remove sys variables.

2021-09-15  Masaya Tojo  <masaya@tojo.tokyo>

	Display (system-check system) with pretty-print.

	Return (system-check system) when evaluate define-system.

	Version up from 0.1.1 to 0.2.0.

	Add core-system/equal system.

	fixup!

	Change `define-system` interface.

	Rename syntax from `set` to `=`.

2021-01-19  Masaya Tojo  <masaya@tojo.tokyo>

	Upgrade version to 0.1.1.

	Update synopsis and description.

	Add tests.

	Add `vikalpa.scm`.

	Initial commit.
	* COPYING: New file.
	* Makefile.am: New file.
	* README.org: New file.
	* README.md: Delete file.
	* bootstrap: New file.
	* build-aux/test-driver.scm: New file.
	* configure.ac: New file.
	* guix.scm: New file.
	* pre-inst-env.in: New file.
	* rabbit-prover.scm: New file.
	* toot.scm: New file.