Category:Pages with Questionable Content
These are pages containing proofs that are of questionable validity.
See the questionable template.
Pages in category "Pages with Questionable Content"
The following 113 pages are in this category, out of 113 total.
A
B
C
- Cantor-Bernstein-Schröder Theorem
- Cantor-Bernstein-Schröder Theorem/Proof 4
- Characterization of Lower Semicontinuity
- Definition:Class (Class Theory)
- Class Member of Class Builder
- Definition:Class/Zermelo-Fraenkel
- Closure in Subspace
- Definition:Coefficient of Polynomial
- Compact Hausdorff Topology is Minimal Hausdorff
- Conditions for Internal Group Direct Product
- Conjunction with Tautology/Proof 1
- Construction of Outer Measure
- Continued Fraction Algorithm
- Continuous Functions on Compact Space form Banach Space
- Continuous Image of Compact Space is Compact/Corollary 3
- Continuous Image of Compact Space is Compact/Corollary 3/Proof 2
- Convergents are Best Approximations
- Conversion of Number in Golden Mean Number System to Simplest Form
D
E
F
- Factorial Divides Product of Successive Numbers
- Factors of Integer Congruent to 5 modulo 6
- First Order ODE/y' - f (y) phi' (x) over f' (y) = phi (x) phi' (x) over f' (y)
- Fixed Point of Mappings is Fixed Point of Composition/General Result
- Floor of x+m over n
- Floor of x+m over n/Proof 1
- Fourier Series/1 over -1 to 0, Cosine of x over 0 to 1
- Fourier Series/x over 0 to 2, x-2 over 2 to 4
- Fourth Isomorphism Theorem
I
L
- Lagrange's Four Square Theorem
- Lagrange's Four Square Theorem/Proof 2
- Definition:Leading Coefficient of Polynomial
- Lebesgue Integral is Extension of Riemann Integral
- Limit at Infinity of Polynomial over Complex Exponential
- Definition:Limit Point/Topology/Set
- Definition:Limit Point/Topology/Set/Definition 5
- Locally Compact iff Open Neighborhood contains Compact Open Neighborhood
- Locally Compact iff Open Neighborhood contains Compact Set
- Logarithm of Infinite Product of Complex Functions/Corollary
- Logarithmic Derivative of Infinite Product of Analytic Functions
- Logical Consequence with Union
M
N
O
P
- Pair is Union of Singletons
- Power of 2 is Difference between Two Powers
- Power Series Expansion for Exponential of Tangent of x
- Prime Enumeration Function is Primitive Recursive
- Prime Number Theorem
- Primitive of Exponential of a x by Sine of b x/Proof 2
- Primitive of Exponential of a x by Sine of b x/Proof 3
- Primitive of Reciprocal of p plus q by Cosine of a x
- Primitive of Reciprocal of p plus q by Cosine of a x/Proof 2
- Primitive of Reciprocal of Root of x squared minus a squared/Logarithm Form
- Definition:Primitive Recursion/One Variable
- Principle of Finite Induction
- Principle of Finite Induction/Proof 2
- Product of Two Distinct Primes has 4 Positive Divisors
- Proper Subset of Finite Ordinal is Equivalent to Smaller Ordinal
R
S
- Second Derivative of Locus of Cycloid
- Set Equivalence is Equivalence Relation
- Set of all Sets
- Set of Gödel Numbers of Arithmetic Theorems Not Definable in Arithmetic
- Simple Infinite Continued Fraction Converges
- Size of Tree is One Less than Order
- Size of Tree is One Less than Order/Necessary Condition
- Solution to Legendre's Differential Equation
- Definition:Spanning Subgraph
- Square of Vandermonde Matrix
- Subspace of Real Continuous Functions
- Sufficient Condition for Vector Equals Inverse iff Zero
- Surjection Induced by Powerset is Induced by Surjection
