[Sec 2.4 Lists](https://advanced-r-solutions.rbind.io/vectors.html#lists) Q2 answer: > Note that [as.vector()](https://rdrr.io/r/base/vector.html) and [is.vector()](https://rdrr.io/r/base/vector.html) use different definitions of “vector!” ``` > is.vector(as.vector(mtcars)) > #> [1] FALSE ``` The above output is correct for R version before 4.2.2, but the output is changed to `TRUE` by using R version 4.2.2 ``` > is.vector(as.vector(mtcars)) > #> [1] TRUE ```