1. N. Shimizu (chikoski@gmail.com / @chikoski)
4.7
4.8
N. Shimizu (chikoski@gmail.com / @chikoski)

2. N. Shimizu (chikoski@gmail.com / @chikoski)
• #
#
#
• Int#
#

3. N. Shimizu (chikoski@gmail.com / @chikoski)
4.7

4. N. Shimizu (chikoski@gmail.com / @chikoski)
Alloy
• #
• 1 1 #
•

5. N. Shimizu (chikoski@gmail.com / @chikoski)
• module modulePathName#
• #
•

6. N. Shimizu (chikoski@gmail.com / @chikoski)
• open modulePathName#
• modulePathName #
•
#

7. N. Shimizu (chikoski@gmail.com / @chikoski)
module library/graphs#
pred Acyclic (r: univ -> univ){ no ^r & iden}

8. N. Shimizu (chikoski@gmail.com / @chikoski)
module family#
open library/graphs#
sig Person { parents: set Person}#
fact { Acyclic [parents] }

9. N. Shimizu (chikoski@gmail.com / @chikoski)
module family#
open library/graphs#
sig Person { parents: set Person}#
fact { Acyclic [parents] }

10. N. Shimizu (chikoski@gmail.com / @chikoski)
• #
•
#
m/X m X#

11. N. Shimizu (chikoski@gmail.com / @chikoski)
module family#
open library/graphs#
sig Person { parents: set Person}#
pred Acyclic { graphs/Acyclic [parents]}

12. N. Shimizu (chikoski@gmail.com / @chikoski)
module family#
open library/graphs#
sig Person { parents: set Person}#
pred Acyclic { graphs/Acyclic [parents]}

13. N. Shimizu (chikoski@gmail.com / @chikoski)
module family#
open library/graphs as g#
sig Person { parents: set Person}#
pred Acyclic { g/Acyclic [parents]}

14. N. Shimizu (chikoski@gmail.com / @chikoski)
module family#
open library/graphs as g#
sig Person { parents: set Person}#
pred Acyclic { g/Acyclic [parents]}

15. N. Shimizu (chikoski@gmail.com / @chikoski)
• #
• #
• #
• #

16. N. Shimizu (chikoski@gmail.com / @chikoski)
module library/graphs [t]#
pred Acyclic ( r: t -> t ) { no ^r & iden}

17. N. Shimizu (chikoski@gmail.com / @chikoski)
module library/graphs [t]#
pred Acyclic ( r: t -> t ) { no ^r & iden}

18. N. Shimizu (chikoski@gmail.com / @chikoski)
module family#
open library/graphs [Person]#
sig Person {parents : set Person}#
fact { Acyclic [parents] }

19. N. Shimizu (chikoski@gmail.com / @chikoski)
module family#
open library/graphs [Person]#
sig Person {parents : set Person}#
fact { Acyclicpred Acyclic ( r: }
[parents] Person -> Person) { no ^r & iden}

20. N. Shimizu (chikoski@gmail.com / @chikoski)
4.8

21. N. Shimizu (chikoski@gmail.com / @chikoski)
#e
• e #
•

22. N. Shimizu (chikoski@gmail.com / @chikoski)
sig Card { suit: Suit}#
sig Suit {}#
pred ThreeOfAKind (hand : set Card ){#
#hand.suit = 1 and #hand = 3#
}

23. N. Shimizu (chikoski@gmail.com / @chikoski)
• #
• Int

24. N. Shimizu (chikoski@gmail.com / @chikoski)
Int
sig Node { adj: Node -> lone Int }#
fact {#
all n : Node | #
let w = n.adj [n] | some w => w = 0#
}

25. N. Shimizu (chikoski@gmail.com / @chikoski)
•
• #
#
#
#

26. N. Shimizu (chikoski@gmail.com / @chikoski)
Int
• Int #
• #
run A for 6 Int#
Int -32 31

27. N. Shimizu (chikoski@gmail.com / @chikoski)
• #
•
#
•

28. N. Shimizu (chikoski@gmail.com / @chikoski)
sig Boolean {}#
one True, False extends Boolean {}

29. N. Shimizu (chikoski@gmail.com / @chikoski)
• #
#
#
• Int#
#