vault backup: 2023-10-16 12:13:34

.obsidian/workspace.json

@@ -37,7 +37,7 @@
             "state": {
               "type": "markdown",
               "state": {
-                "file": "4a1s/RAS/Notas Projeto RAS.md",
+                "file": "4a1s/MFES/PL - Aula 4.md",
                 "mode": "source",
                 "source": false
               }
@@ -110,7 +110,7 @@
             "state": {
               "type": "backlink",
               "state": {
-                "file": "4a1s/RAS/Notas Projeto RAS.md",
+                "file": "4a1s/MFES/PL - Aula 4.md",
                 "collapseAll": false,
                 "extraContext": false,
                 "sortOrder": "alphabetical",
@@ -127,7 +127,7 @@
             "state": {
               "type": "outgoing-link",
               "state": {
-                "file": "4a1s/RAS/Notas Projeto RAS.md",
+                "file": "4a1s/MFES/PL - Aula 4.md",
                 "linksCollapsed": false,
                 "unlinkedCollapsed": true
               }
@@ -150,7 +150,7 @@
             "state": {
               "type": "outline",
               "state": {
-                "file": "4a1s/RAS/Notas Projeto RAS.md"
+                "file": "4a1s/MFES/PL - Aula 4.md"
               }
             }
           },
@@ -185,6 +185,8 @@
   },
   "active": "cca189cd61cd7fe5",
   "lastOpenFiles": [
+    "4a1s/RAS/Notas Projeto RAS.md",
+    "4a1s/MFES/PL - Aula 4.md",
     "4a1s/ASCN/T - Aula 1.md",
     "4a1s/MFES/T - Aula 2.md",
     "4a1s/RAS/T - Aula 1.md",
@@ -215,8 +217,6 @@
     "4a1s/ESR",
     "My Digital Garden.md",
     "Private-Project",
-    "Excalidraw/Drawing 2023-09-27 17.15.52.excalidraw.md",
-    "4a1s/Excalidraw/RAS/process.excalidraw.md",
     "4a1s/Excalidraw/RAS",
     "Excalidraw",
     "-.32118",

4a1s/MFES/PL - Aula 4.md

@@ -0,0 +1,75 @@
+16 Outubro 2023 - #MFES 
+
+
+## Alloy4Fun
+
+```c
+sig User {
+	follows : set User,
+	sees : set Photo,
+	posts : set Photo,
+	suggested : set User
+}
+
+sig Influencer extends User {}
+
+sig Photo {
+	date : one Day
+}
+sig Ad extends Photo {}
+
+sig Day {}
+// Specify the following properties.
+// You can check their correctness with the different commands and
+// when specifying each property you can assume all the previous ones to be true.
+
+pred inv1 {
+	// Every image is posted by one user.
+	all y: Photo | some x: User | x->y in posts
+	all x,y : User, z: Photo | x->z in posta 
+}
+ 
+
+pred inv2 {
+	// Users cannot follow themselves.
+
+}
+
+
+pred inv3 {
+	// Users can see ads posted by everyone, 
+	// but only see non ads posted by followed users.
+
+}
+
+
+pred inv4 {
+	// If a user posts an ad then all its posts should be labeled as ads. 
+
+}
+
+
+pred inv5 {
+	// Influencers are followed by everyone else.
+
+}
+
+
+pred inv6 {
+	// Influencers post every day.
+
+}
+
+
+pred inv7 {
+	// Suggested are other users followed by followed users, but not yet followed.
+	
+}
+
+
+pred inv8 {
+	// A user only sees ads from followed or suggested users.
+
+}
+
+```