Nodes must either be taxa or speciation events and internodes must be either taxa or statement of relationships over the entire tree.
Building on previous works [4] defines "theory as a statement of relationships between units observed or approximated in the empirical world", where 'observed' means measureable and 'approximated' means constructed whenever which the very nature of the unit of study cannot be observed directly (e.g., centralization, satisfaction, or culture).
Strauss and Corbin [ 33],p15 explain theory as "A set of well-developed concepts related through statements of relationship, which together constitute an integrated framework that can be used to explain or predict phenomena".
Laws, in contrast, are described by Lederman et al. (2002) as "descriptive statements of relationships among observable phenomena" (p. 500).
These are explicit, public statements of relationships and are built in to many web applications, or can simply be added by humans.
Presenting a phylogenetic tree in conjunction with classification may help novices make connections between the tree and more familiar ideas and ways of thinking, but how best to convey this when these classifications conflict with the statements of relationships depicted in trees is a challenge.
The probability of an event A conditional on another event B is in general different from the probability of B conditional on A. However, there is an explicit relationship between the two, and Bayes' theorem is the statement of that relationship [ 15].
"As a result we withdraw the recommendation that a statement of 'meaningful relationship' be inserted in the legislation".
A correction on that point in this space last Sunday mistakenly retracted the Feb. 27 article's statement of the relationship between Queen Elizabeth I and Mary, Queen of Scots.
According to the Ministry of Justice: "The constitutional relationship between the Islands and the UK is the outcome of historical processes, and accepted practice … The most recent statement of the relationship between the UK and the islands is found in the Kilbrandon Report.
There will be opportunities to assess a very large part of Pollini's career in London this year as he embarks on a five-concert Royal Festival Hall season spread over five months that is both a history of piano music and a statement of his relationship to it.
