Proofs involving a $d$-regular bipartite graph
117707
d-regular bipartite graph
92609
How to Mathematically Prove the Bilinear Pairing Properties
48692
A problem about the graph theory
31340
Concurrent lines proof for a regular 18-gon
25553
elementary set theory (cartesian product and symmetric difference proof)
52565
Prove that if $d \mid n \in \mathbb{N}$, then $\varphi(d) \mid \varphi(n)$.
151038
How to prove (A v B), (A → C), (B → D) therefore (C v D)
111032
Proof of Sets involving the Cartesian Product
6429
prove that a connected graph with $n$ vertices has at least $n-1$ edges
157939
prove that a graph is one-ended
147282
Prove that in every graph with at least two vertices, there are at least two vertices which have the same degree?
145718
Proving that A connected graph on $n$ vertices is a tree iff it has $n-1$ edges
114277
Proving in Discrete Structures Problem that $2^N = \binom{N}{0} + \binom{N}{1} + \binom{N}{2} + \dots + \binom{N}{N}$
46550
Proving an 'obvious' Ramsey upperbound
61340
Prove that there exists bipartite graph with this degree sequence: $(3,3,3,3,3,5,6,6,6,6,6,6,6,6)$
138226
Finding All n-regular graphs on m vertices
19219
On the invertibility of the adjacency matrix of a graph