I'm writing some functions in R and I'm having some issues. Summarizing, inside the function I'm writing, I call another function that I've developed. The 2nd function shares some arguments with the first, how to specify to this 2nd function that has to take the same values for its arguments that the ones in the first function?

```
first.fx=function(arg1,arg2,arg3,...){
  .
  .
  .
  second.fx=function(arg2,arg3,arg4,...){

  }
}

```

The second.fx shares with the first arg2 & arg3. How to inherit these to values to second.fx?