Skip to content

Update sidenote-underconstraint.html #73

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
hardroadcrush wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Update sidenote-underconstraint.html #73

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
16 changes: 8 additions & 8 deletions tutorials/online/sidenote-underconstraint.html
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -7,21 +7,21 @@
<body>
<h2>Underconstraint - a great win of declarative modeling</h2>

<p> When you haven't written enough constraints, and are allow absurd
solutions which shouldn't even be considered, then you are facing
a problem of underconsrtaint. This kind of bug is actually pretty
<p> When you haven't written enough constraints, you allow absurd
solutions which shouldn't have been allowed. This is the
problem of underconsrtaint. This kind of bug is actually pretty
easy to catch. You'll spot it when you get a bogus
counterexample; one that shouldn't exist at all, and thus isn't a
legitimate counterexample. Look at it and formulate <i>why</i> it
legitimate example. Look at it and formulate <i>why</i> it
is ill-formed, then simply add a constraint to prevent solutions
of that form. However, make sure that the situation can't
actually occur in the system you are modeling, and be wary of
ruling out desirable solutions in your effort to prevent the bad
one that you have found.</p>

<p> You can use the <a href="sidenote-format-run.html"> <b><tt>run</b></tt> command help identify
underconstraints</a>.</p>
one that you have found.(ie. avoid overconstraining)</p>

<p> You can use the <a href="sidenote-format-run.html"> <b><tt>run</b></tt></a> command to help identify
underconstraints from examples .</p>
<p> You can also use the <a href="https://alloytools.org/tutorials/online/sidenote-format-check.html">check</a> command on assertions to check that no wrong examples (counterexamples) exist.</p>
<p> The other side of the coin is <a href="sidenote-overconstraint.html">overconstraint</a>.</p>

</body>
Expand Down