If all birds are dinosaurs and all dinosaurs are reptiles then all birds are reptiles
But if all birds are not reptiles then not all dinosaurs are reptiles and or all birds are not dinosaurs
If some birds are not reptiles then not all dinosaurs are reptiles and or not all birds are dinosaurs
Copyright Carl Janssen 2022 April 15
"Modern taxonomy classifies all dinosaurs as reptiles."
http://web.archive.org/web/20210617054043/https://www.worldatlas.com/articles/were-dinosaurs-reptiles.html
"Modern classification considers all dinosaurs to be reptiles"
http://web.archive.org/web/20220415082239/https://adventuredinosaurs.com/2019/09/18/dinosaurs-were-reptiles-heres-why/
"What Category Is A Dinosaur?
Since dinosaurs have anatomical features that are similar to living reptiles, they have always been classified as reptiles.
Are Dinosaurs Not Reptiles?
The modern taxonomy classifies all dinosaurs as reptiles, not birds or mammals"
http://web.archive.org/web/20220415082458/https://www.animalpicturesarchive.com/is-dinosaur-a-reptile-or-an-amphibian/
Using more modern classification techniques, we’ve also found out that not only are dinosaurs reptiles, but birds are too.
http://web.archive.org/web/20220314141928/activewild.com/are-dinosaurs-reptiles/
"birds are reptiles"
http://web.archive.org/web/20211204145747/https://askabiologist.asu.edu/questions/birds-dinosaurs-reptiles
"In the Linnaean system, organisms are grouped by characteristics regardless of their ancestry. So a reptile is an animal that is ectothermic and has scales, and birds would not be reptiles. In the 1940's, a biologist named Willi Hennig came up with another classification system that he called phylogenetics. In this system, organisms are grouped only by their ancestry, and characteristics are only used to discover the ancestry."
http://web.archive.org/web/20211204145747/https://askabiologist.asu.edu/questions/birds-dinosaurs-reptiles
https://duckduckgo.com/?q=are+all+dinosaurs+reptiles&ia=web
"birds are literally dinosaurs"
http://web.archive.org/web/20220408070301/birdlife.org/news/2021/12/21/its-official-birds-are-literally-dinosaurs-heres-how-we-know/
https://duckduckgo.com/?q=are+all+birds+dinosaurs&ia=web
birds are considered a separate class to reptiles
http://web.archive.org/web/20220403071650/https://en.m.wikipedia.org/wiki/Reptile
https://duckduckgo.com/?q=are+birds+reptiles&ia=web
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