1 Table of Contents: “... to Establish the Summability of Orthogonal Series -- On Projections in Approximation Theory -- A Survey...”

2 Table of Contents: “... of integers and inequalities from extremal poset problems -- IV. Social Sciences -- Issues in the theory...”

3 Table of Contents: “... With no Infinite Independent Set -- Problems About Planar Orders -- Superstable and Unstable Theories of Order...”

4 Table of Contents: “... in Approximation Theory -- On the Order Monotonicity of the Metric Projection Operator -- Pointwise Estimates...”