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Objects of class "block" can be combined by using the generic default method "c" (combine).
"block"
"c"
# S3 method for block c(...)
an list of "block" objects.
objects to be concatenated.
c(Header( "R Basics" ), Header("What is R?", level=2), Plain(c(Emph("R"), Space(), "is a system for ", Strong("statistical computation"))))
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