::: {.cell hash='02_R_introduction_cache/revealjs/unnamed-chunk-75_95a4e427c55a9d1af3d514632c201941'}

```{.r .cell-code}
lgls <- c(F, F, F)
all(!lgls)
```

::: {.cell-output .cell-output-stdout}
```
[1] TRUE
```
:::
:::