Pterosaur integumentary structures with complex feather-like branching
نویسندگان
چکیده
منابع مشابه
“complex-like” Analysis in O-minimal Structures
Theorem 1. Let K = 〈K,+, ·, . . .〉 be an expansion of K all of whose atomic relations are definable in R. If K is a proper expansion of 〈K,+, ·〉 then the field R is definable in K. By “proper expansion of 〈K,+, ·〉”, we mean that there is a definable set in K which is not definable in 〈K,+, ·〉 (even with parameters). In particular, the theorem implies that there are no proper expansions of an al...
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ژورنال
عنوان ژورنال: Nature Ecology & Evolution
سال: 2018
ISSN: 2397-334X
DOI: 10.1038/s41559-018-0728-7