Full Idea
Both of the Löwenheim-Skolem Theorems fail for second-order languages with a standard semantics
Gist of Idea
The Löwenheim-Skolem Theorems fail for second-order languages with standard semantics
Source
Stewart Shapiro (Higher-Order Logic [2001], 2.3.2)
Book Reference
'Blackwell Guide to Philosophical Logic', ed/tr. Goble,Lou [Blackwell 2001], p.47