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| author | Timotej Lazar <timotej.lazar@fri.uni-lj.si> | 2019-01-05 12:38:39 +0100 |
|---|---|---|
| committer | Timotej Lazar <timotej.lazar@fri.uni-lj.si> | 2019-01-05 12:38:39 +0100 |
| commit | 3e5d0d5844d9e747dd8b5995e5e1d5112800d85e (patch) | |
| tree | 9f72a1fb83ff3a35ef77b934fac1423a1c54707d | |
| parent | c13b52c27e84a0a94e66d569dc03cfcf0f8e5261 (diff) | |
Prolog: add short intro for family_relations set
| -rw-r--r-- | prolog/problems/family_relations/en.py | 9 | ||||
| -rw-r--r-- | prolog/problems/family_relations/intro_en.html | 49 |
2 files changed, 57 insertions, 1 deletions
diff --git a/prolog/problems/family_relations/en.py b/prolog/problems/family_relations/en.py index dd8f6d6..a57ff7f 100644 --- a/prolog/problems/family_relations/en.py +++ b/prolog/problems/family_relations/en.py @@ -1,2 +1,9 @@ name = 'Family relations' -description = 'First steps in Prolog, defining rules for various family relations.' +description = '''\ +<p> +<a target="_blank" href="[%@resource intro_en.html%]">First steps in Prolog</a>: defining rules for various family relations. +For tasks in this set a database of <a target="_blank" href="[%@resource famrel.svg%]">family trees</a> is already defined. +In Prolog, this information is represented with the predicates <code>parent/2</code>, +<code>male/1</code> and <code>female/1</code>. +</p> +''' diff --git a/prolog/problems/family_relations/intro_en.html b/prolog/problems/family_relations/intro_en.html new file mode 100644 index 0000000..6f2a8d6 --- /dev/null +++ b/prolog/problems/family_relations/intro_en.html @@ -0,0 +1,49 @@ +<!DOCTYPE html> +<html lang="en"> +<head> + <meta charset="utf-8" /> + <title>Prolog: family relations</title> + <link rel="stylesheet" type="text/css" href="/css/codeq.css" /> + <link rel="stylesheet" type="text/css" href="../../style.css" /> +</head> +<body> + +<h1>Prolog: family relations</h1> +<p> +The first set of tasks is an introduction to Prolog. At the same time we will refresh our knowledge of family relations – that’s right, we will deal with aunts, uncles, grandparents, ancestors and descendants. +</p> + +<h2>Knowledge base</h2> +<p> +Everything Prolog knows is written in its knowledge base, which is simply a Prolog program. This is usually loaded from one or more files, which are loaded automatically in <span class="codeq">CodeQ</span>. The figure below shows a graphical representation of the knowledge base for this set. +</p> + +<figure> + <a href="famrel.svg" target="_blank"> + <img src="famrel.svg" /> + </a> + <figcaption>The graph (forest) of family relations</figcaption> +</figure> + +<p> +The knowledge base itself is of course not represented in graphical form; it actually looks like this: +</p> +<pre> +parent(tina, william). +parent(thomas, william). +parent(thomas, sally). +parent(thomas, jeffrey). +parent(william, vanessa). +… +female(tina). +female(sally). +female(vanessa). +… +male(william). +male(thomas). +male(jeffrey). +… +</pre> + + </body> +</html> |