Boolean Algebra
In mathematics and mathematical logic, Boolean algebra is a sub-area of algebra in which the values of the variables are true or false, typically denoted with 1 or 0 respectively. Instead of elementary algebra where the values of the variables are numbers and the main operations are addition and multiplication, the main operations of Boolean algebra are the conjunction (denoted ∧), the disjunction (denoted ∨) and the negation (denoted ¬).
In this mission you should implement some boolean operations:
- "conjunction"
denoted x ∧ y, satisfies x ∧ y = 1 if x = y = 1 and x ∧ y = 0 otherwise.
- "disjunction"
denoted x ∨ y, satisfies x ∨ y = 0 if x = y = 0 and x ∨ y = 1 otherwise.
- "implication" (material implication)
denoted x→y and can be described as ¬ x ∨ y.
If x is true then the value of x → y is taken to be that of y.
But if x is false then the value of y can be ignored; however the operation must return
some truth value and there are only two choices, so the return value is the one that entails less, namely true.
- "exclusive" (exclusive or)
denoted x ⊕ y and can be described as (x ∨ y)∧ ¬ (x ∧ y).
It excludes the possibility of both x and y. Defined in terms of arithmetic it is addition mod 2 where 1 + 1 =
0.
- "equivalence"
denoted x ≡ y and can be described as ¬ (x ⊕ y).
It's true just when x and y have the same value.
Here you can see the truth table for these operations:
x | y | x∧y | x∨y | x→y | x⊕y | x≡y | -------------------------------------- 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | --------------------------------------
You are given two boolean values x and y as 1 or 0 and you are given an operation name as described earlier. You should calculate the value and return it as 1 or 0.
Input: Three arguments. X and Y as 0 or 1. An operation name as a string.
Output: The result as 1 or 0.
Example:
assert boolean(0, 0, "conjunction") ==...
CheckiO Extensions allow you to use local files to solve missions. More info in a blog post.
In order to install CheckiO client you'll need installed Python (version at least 3.8)
Install CheckiO Client first:
pip3 install checkio_client
Configure your tool
checkio --domain=py config --key=
Sync solutions into your local folder
checkio sync
(in beta testing) Launch local server so your browser can use it and sync solution between local file end extension on the fly. (doesn't work for safari)
checkio serv -d
Alternatevly, you can install Chrome extension or FF addon
checkio install-plugin
checkio install-plugin --ff
checkio install-plugin --chromium
Read more here about other functionality that the checkio client provides. Feel free to submit an issue in case of any difficulties.
Welcome to Pair Programming! Engage in real-time collaboration on coding projects by starting a session and sharing the provided unique URL with friends or colleagues. This feature is perfect for joint project development, debugging, or learning new skills together. Simply click 'Start Session' to begin your collaborative coding journey!
You are trying to join a pair programming session that has not started yet.
Please wait for the session creator to join.
It looks like the creator of the pair programming session closed the editor window.
It might happen accidentally, so that you can wait for reconnection.
