Is there a Linq method to tell that A is the subset of B?
29314
Check whether an array is a subset of another
5215
Can the principle of inclusion/exclusion be used to count elements in the intersection of a sequence of sets?
47434
Proof that $A \subseteq B \Leftrightarrow A \cup B = B$
106848
Conditional WHERE in LINQ
65279
Split a collection into `n` parts with LINQ?
66242
Use LINQ to get items in one List, that are not in another List
106414
Classifying whether a collection of objects is a set
41080
If A, B, and C are set and $A \subset B ,B \subset C \rightarrow A \subset C$
16056
Is empty set element of every set if it is subset of every set?
5448
Finding the closure of some subsets of the ordered square
31980
Is the boundary of a boundary a subset of the boundary?
39465
LINQ implementation of Cartesian Product with pruning
124325
Element of, subset of and empty sets
13415
How to show if $A \subseteq B$, then $A \cap B = A$?
148025
Is there an operator for 'contained in set or subset or subset of subset' and so on?
144181
Given an arbitrary set $X$, can one always find an element outside $X$?
66773
How to do intersection with condition in C#?