::: {.cell hash='02_R_introduction_cache/revealjs/unnamed-chunk-69_0996b2ded31dec9c3a81e92097d1793d'}

```{.r .cell-code}
"ahahaha" & T
```

::: {.cell-output .cell-output-error}
```
Error in "ahahaha" & T: operations are possible only for numeric, logical or complex types
```
:::
:::