Question juridique clé
Whether the 1968 amendment to the pension fund regulations was valid and non-arbitrary.
Solution extraite
The amendment was validly adopted under the existing reservation of amendment and did not violate equality, arbitrariness, or trust protection.
Motifs extraits
The insured had accepted the regulation including the amendment clause. The coordination deduction responded to the emerging first-pillar AHV system, and differentiated treatment or reduced vested expectations was not inherently impermissible.