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1. a conditional expression isEmpty [a] -> Bool isEmpty [] = True is Empty = False safeTailCond :: [a] => [a] safeTailCond l = if is Empty 1 then [] else tail l

1. a conditional expression isEmpty [a] -> Bool isEmpty [] = True is Empty = False safeTailCond :: [a] => [a] safeTailCond l = if is Empty 1 then [] else tail l

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Please can someone explain each line alongside each symbol of the expression Please please give a detailed explanation I will upvote it
4. (Adapted and expanded from the book "Programming in Haskell) Define a function safetail :: [a] -> [a] that behaves like tail except that it maps [] to [] (instead of throwing an error). Using tail and isEmpty :: [a] -> Bool, define safetail using 1. a conditional expression is Empty [a] -> Bool isEmpty [] = True isEmpty_ = False safeTailCond :: [a] -> [a] safeTailCond l = if isEmpty 1 then [] else tail l
Transcribed Image Text:4. (Adapted and expanded from the book "Programming in Haskell) Define a function safetail :: [a] -> [a] that behaves like tail except that it maps [] to [] (instead of throwing an error). Using tail and isEmpty :: [a] -> Bool, define safetail using 1. a conditional expression is Empty [a] -> Bool isEmpty [] = True isEmpty_ = False safeTailCond :: [a] -> [a] safeTailCond l = if isEmpty 1 then [] else tail l
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