how to change into rule (Prolog)










0















I'm currently learning about Prolog and doesn't quite understand how to turn this statement into a rule. this one particular question confuse me a lot. please help!



this is the database:



weather(tuesday,fair).
weather(wednesday,overcast).
weather(thursday,overcast).
weather(friday,rainy).
weather(saturday,overcast).

color_of_the_sky(blue,Day) :- weather(Day,fair).
color_of_the_sky(grey,Day) :- weather(Day,overcast).

status(active,sunday).
status(active,tuesday).
status(active,thursday).

happy(Day) :- weather(Day,fair), status(active,Day).


the statement is:




birds will have mixed feeling when it is raining and birds are active.











share|improve this question






















  • It's a poorly constructed homework assignment. Birds are not defined anywhere and mixed feeling is not mentioned anywhere. No wonder you are confused. The instructor ought to use facts and rules with descriptive names. In my opinion none of the above are properly descriptive. I believe the last rule is intended to say "birds are happy when the weather is fair and birds are active."

    – Alan Baljeu
    Nov 13 '18 at 18:09







  • 2





    mixed(Day) :- weather(Day, rainy), status(active, Day).

    – Daniel Lyons
    Nov 13 '18 at 18:48






  • 2





    The key here is to understand Prolog syntax is to read :- as "if", and say about the left side, "I can conclude". So, "I can conclude happy(Day) if weather(Day, fair) and status(active, Day).

    – Daniel Lyons
    Nov 13 '18 at 18:50











  • ohhhh i see ! thank you very muchh! the birds confuse me so much thanksss

    – yuu yyuako
    Nov 14 '18 at 4:41















0















I'm currently learning about Prolog and doesn't quite understand how to turn this statement into a rule. this one particular question confuse me a lot. please help!



this is the database:



weather(tuesday,fair).
weather(wednesday,overcast).
weather(thursday,overcast).
weather(friday,rainy).
weather(saturday,overcast).

color_of_the_sky(blue,Day) :- weather(Day,fair).
color_of_the_sky(grey,Day) :- weather(Day,overcast).

status(active,sunday).
status(active,tuesday).
status(active,thursday).

happy(Day) :- weather(Day,fair), status(active,Day).


the statement is:




birds will have mixed feeling when it is raining and birds are active.











share|improve this question






















  • It's a poorly constructed homework assignment. Birds are not defined anywhere and mixed feeling is not mentioned anywhere. No wonder you are confused. The instructor ought to use facts and rules with descriptive names. In my opinion none of the above are properly descriptive. I believe the last rule is intended to say "birds are happy when the weather is fair and birds are active."

    – Alan Baljeu
    Nov 13 '18 at 18:09







  • 2





    mixed(Day) :- weather(Day, rainy), status(active, Day).

    – Daniel Lyons
    Nov 13 '18 at 18:48






  • 2





    The key here is to understand Prolog syntax is to read :- as "if", and say about the left side, "I can conclude". So, "I can conclude happy(Day) if weather(Day, fair) and status(active, Day).

    – Daniel Lyons
    Nov 13 '18 at 18:50











  • ohhhh i see ! thank you very muchh! the birds confuse me so much thanksss

    – yuu yyuako
    Nov 14 '18 at 4:41













0












0








0








I'm currently learning about Prolog and doesn't quite understand how to turn this statement into a rule. this one particular question confuse me a lot. please help!



this is the database:



weather(tuesday,fair).
weather(wednesday,overcast).
weather(thursday,overcast).
weather(friday,rainy).
weather(saturday,overcast).

color_of_the_sky(blue,Day) :- weather(Day,fair).
color_of_the_sky(grey,Day) :- weather(Day,overcast).

status(active,sunday).
status(active,tuesday).
status(active,thursday).

happy(Day) :- weather(Day,fair), status(active,Day).


the statement is:




birds will have mixed feeling when it is raining and birds are active.











share|improve this question














I'm currently learning about Prolog and doesn't quite understand how to turn this statement into a rule. this one particular question confuse me a lot. please help!



this is the database:



weather(tuesday,fair).
weather(wednesday,overcast).
weather(thursday,overcast).
weather(friday,rainy).
weather(saturday,overcast).

color_of_the_sky(blue,Day) :- weather(Day,fair).
color_of_the_sky(grey,Day) :- weather(Day,overcast).

status(active,sunday).
status(active,tuesday).
status(active,thursday).

happy(Day) :- weather(Day,fair), status(active,Day).


the statement is:




birds will have mixed feeling when it is raining and birds are active.








prolog






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 13 '18 at 18:02









yuu yyuakoyuu yyuako

11




11












  • It's a poorly constructed homework assignment. Birds are not defined anywhere and mixed feeling is not mentioned anywhere. No wonder you are confused. The instructor ought to use facts and rules with descriptive names. In my opinion none of the above are properly descriptive. I believe the last rule is intended to say "birds are happy when the weather is fair and birds are active."

    – Alan Baljeu
    Nov 13 '18 at 18:09







  • 2





    mixed(Day) :- weather(Day, rainy), status(active, Day).

    – Daniel Lyons
    Nov 13 '18 at 18:48






  • 2





    The key here is to understand Prolog syntax is to read :- as "if", and say about the left side, "I can conclude". So, "I can conclude happy(Day) if weather(Day, fair) and status(active, Day).

    – Daniel Lyons
    Nov 13 '18 at 18:50











  • ohhhh i see ! thank you very muchh! the birds confuse me so much thanksss

    – yuu yyuako
    Nov 14 '18 at 4:41

















  • It's a poorly constructed homework assignment. Birds are not defined anywhere and mixed feeling is not mentioned anywhere. No wonder you are confused. The instructor ought to use facts and rules with descriptive names. In my opinion none of the above are properly descriptive. I believe the last rule is intended to say "birds are happy when the weather is fair and birds are active."

    – Alan Baljeu
    Nov 13 '18 at 18:09







  • 2





    mixed(Day) :- weather(Day, rainy), status(active, Day).

    – Daniel Lyons
    Nov 13 '18 at 18:48






  • 2





    The key here is to understand Prolog syntax is to read :- as "if", and say about the left side, "I can conclude". So, "I can conclude happy(Day) if weather(Day, fair) and status(active, Day).

    – Daniel Lyons
    Nov 13 '18 at 18:50











  • ohhhh i see ! thank you very muchh! the birds confuse me so much thanksss

    – yuu yyuako
    Nov 14 '18 at 4:41
















It's a poorly constructed homework assignment. Birds are not defined anywhere and mixed feeling is not mentioned anywhere. No wonder you are confused. The instructor ought to use facts and rules with descriptive names. In my opinion none of the above are properly descriptive. I believe the last rule is intended to say "birds are happy when the weather is fair and birds are active."

– Alan Baljeu
Nov 13 '18 at 18:09






It's a poorly constructed homework assignment. Birds are not defined anywhere and mixed feeling is not mentioned anywhere. No wonder you are confused. The instructor ought to use facts and rules with descriptive names. In my opinion none of the above are properly descriptive. I believe the last rule is intended to say "birds are happy when the weather is fair and birds are active."

– Alan Baljeu
Nov 13 '18 at 18:09





2




2





mixed(Day) :- weather(Day, rainy), status(active, Day).

– Daniel Lyons
Nov 13 '18 at 18:48





mixed(Day) :- weather(Day, rainy), status(active, Day).

– Daniel Lyons
Nov 13 '18 at 18:48




2




2





The key here is to understand Prolog syntax is to read :- as "if", and say about the left side, "I can conclude". So, "I can conclude happy(Day) if weather(Day, fair) and status(active, Day).

– Daniel Lyons
Nov 13 '18 at 18:50





The key here is to understand Prolog syntax is to read :- as "if", and say about the left side, "I can conclude". So, "I can conclude happy(Day) if weather(Day, fair) and status(active, Day).

– Daniel Lyons
Nov 13 '18 at 18:50













ohhhh i see ! thank you very muchh! the birds confuse me so much thanksss

– yuu yyuako
Nov 14 '18 at 4:41





ohhhh i see ! thank you very muchh! the birds confuse me so much thanksss

– yuu yyuako
Nov 14 '18 at 4:41












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