AI 08226 Prolog (PROgramming in LOGic) - Department of ...

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Predicate Functors and Arity 6 Predicates have functor and arity No space between predicate name & first parenthesis %color(1) color(red). color(green). %color/2 color(robot, red). color(grass, green). %color/3 color(robot, red, shiny). color(sea, green, dull).
Terms and variables 7 NO such thing as GLOBAL variable nearest is set of predicates as functor/arity combinations Terms beginning with Uppercase Alpha characters are variables cost(Thing, X, Y). Tokens starting with lower case characters are not. cost(robot, X, Y). cost(amigabot, , X, Y).
Page 1 and 2: AI 08226 1 Prolog (PROgramming in L
Page 3 and 4: Introduction 3 Prolog is a declara
Page 5: Predicates and Functors 5 Prolog p
Page 9 and 10: Hints 9 Which prolog available for
Page 11 and 12: Use Comments in Code 11 Use Commen
Page 13 and 14: Prolog Syntax Constant Integer: 0,
Page 15 and 16: Prolog Syntax 15 Operators many bu
Page 17 and 18: Example Facts - greek.pl 17 male(c
Page 19 and 20: More on the use of not 19 female(a
Page 21 and 22: Prolog and logic (in later lectures
Page 23 and 24: The use of the Semi-colon - or 23
Page 25 and 26: Prolog programs 25 Consist of clau
Page 27 and 28: Querying the program in swi-prolog
Page 29 and 30: Program Execution 29 Prolog tries
Page 31 and 32: Example Prolog Execution I 31 - ru
Page 33 and 34: Example Prolog Execution III 33 Loo
Page 35 and 36: Example Prolog Execution V 35 Look
Page 37 and 38: On Prolog Execution 37 Prolog expl
Page 39 and 40: Tree1 39 rule(A) fact(X, , Color),
Page 41 and 42: Tree3 - first of the succeeds rule(
Page 43 and 44: Modelling Automata 43 A Finite Sta
Page 45 and 46: FSM as prolog - state change functi
Page 47 and 48: THE Full FSM in prolog : fsm1.pl 47
Page 49 and 50: Matching 49 General rules for matc
Page 51 and 52: Matching of Variables 51 Order of
Page 53 and 54: Matching 53 Matching in prolog alw
Page 55 and 56: Unification & The occurs check 55
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Testing data 57 valid(day, Day):-
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Example :Month Conversion program 5
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Arithmetic Program 61 run:-
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Unacceptable Prolog! The following
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Programming Techniques : Recursion
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Prolog So Far L1 - Prolog basics a
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Example of Recursion* 69 factorial
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Lists in Prolog* 71 List: an order
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Lists, characters and “strings”
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Handling Lists* 75 The [Head | Tai
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Building a List from Input* 77 bui
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Testing for a list - is_list/1 (bui
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Useful List Predicates* 81 Testing
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Useful List Predicates 83 Appendin
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Deleting the elements of a list 85
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- trace, permutation([a, b, c], L).
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More Built-in List Predicates* 89
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Asserting Predicates 91 assert/1 -
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Static and Dynamic Clauses 93 Cann
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Retracting Predicates 95 retract/1
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Retracting Predicates 97 Can use r
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Does a clause exist - listing. 99
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Combining clause and retract - list
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More on Findall 103 - assert( fish(
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Compound Terms via Findall 105 fish
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Prolog for Senses for FSM-Agent 107
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When is a thing a block 109 % block
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How is an agent run 111 % run_agent
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Compound Terms 113 Can use simple
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Alternative is to use compound term
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Alternative: Structure it yourself
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Tracing Frequency 119 trace, freque
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Variation 2 on Frequency with Cut (
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Goals and Cut Suppose rule p with
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Running the two versions - input1.
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So what happens 127 - same_rule(X,Y
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Run Time 129 member1 will succeed f
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The use of cut in negation - versio
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Negation as failure 133 - animal(X)
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Principles of Good Programming 135
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Thinking about prolog programs 137
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Consider intersection of sets probl
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Test cases: Set UNION without not 1
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Testing setunion with The CUT - set
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Set Intersection using not 145 Set
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Generalisation 147 The idea is to
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Example of structuralisation 149 C
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Some rules of good Prolog style 151
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merge - better style 153 merge2([ ]
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- trace, merge2([1,2],[1],L). Call
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Bubble Sort 157 bubblesort(List, ,
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Running swap.pl - with time/1 159
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Manipulating Characters atom_chars
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Manipulating Characters 163 name/2
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Manipulating Characters 165 Input
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- var(X), X = 2. - nonvar(X), X = 2
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What does the following code do 169
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Getting a listing 171 listing/0 li
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AI 08226 Prolog (PROgramming in LOGic) - Department of ...

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