What is another word for according to affirmation?
Pronunciation: [ɐkˈɔːdɪŋ tʊ ˌafəmˈe͡ɪʃən] (IPA) 
When it comes to conveying a statement or idea that is based on confirmation or affirmation, there are many synonyms that can be used instead of "according to affirmation". Some of these include "as confirmed by," "based on evidence," "corroborated by," "validated by," "endorsed by," and "supported by." All of these phrases communicate the idea that the information being presented has been verified or confirmed through some means, whether it be through research, reliable sources, or other methods of validation. By using different synonyms, a writer can vary their language and keep their writing fresh and engaging while still conveying the same fundamental message.
