by saying "A and B", it means BOTH A and B. you may use 'and' in positive and negative sentences. 'or' provides exclusiveness between choices. by saying "A or B", it means ONLY ONE between A and B can be considered.
And is used to connect or join two or more phrases, words, sentences , etc. Or is used to connect two or more possibilities, options, or alternatives .
In particular, and suggests the joint consideration of two concepts, whereas or suggests exclusivity.
and/or | Intermediate English
(used to refer to both things or either one of the two mentioned) either "and" or "or": If the game is canceled, you will get a refund and/or new tickets.
The words "and", "but", and "or", are called coordinating conjunctions, but you do not need to know this. You just need to know how they are used and what they mean. Use "and" for similar, connected, or related things. Use "but" for things that are different or opposite. Use "or" to give a choice or alternative.
But – conjunction – used to introduce something contrasting with what has already been mentioned. And – conjunction – used to connect words of the same part of speech, clauses, or sentences that are to be taken jointly.
A conjunction joins words, phrases, or clauses, and indicates the relationship between the elements joined. Coordinating conjunctions connect grammatically equal elements: and, but, or, nor, for, so, yet.
[M] [T] You must decide whether you will go by train or by plane. [M] [T] Do you spend more time with your friends or with your family? [M] [T] I haven't decided yet whether I'll go to college or get a job. [M] [T] She was asked to convince him to get his son or someone else to paint the house.
AND, OR and NOT are the fundamental operations of Boolean logic, which is how digital circuits are architected. To learn how they function together to build circuits, see Boolean logic. The Mathematics of Boolean Logic These three operations are the building blocks of digital circuits.
Most editors and style manuals discourage the use of “and/or” in writing because it can lead to ambiguity. For example, the Chicago Manual of Style advises against using “and/or” and suggests using other constructions such as “and/or both” or “or both” when both conditions are optional.
Do You Put a Comma After "And"? If you use a comma with "and," it should always precede the word "and." You should never put a comma after the word "and." This rule applies to both independent clauses joined by "and" and lists of three or more items, as well as any other time "and" might appear in a sentence.
The word and is a conjunction, and when a conjunction joins two independent clauses, you should use a comma with it. The proper place for the comma is before the conjunction. On Monday we'll see the Eiffel Tower, and on Tuesday we'll visit the Louvre.
Several authorities recommend replacing and/or with or alone. As Follett points out, “generally or includes and.
'Or' compound inequalities produce two separate sets of possible values. 'And' inequalities show a range of values that overlap on the number line.
The key difference is with "or", x only needs to satisfy one of the inequalities. With "and", x needs to satisfy both.
There are three Boolean Operators: AND: All keywords must appear in your results. AND will narrow down a search. OR: Either of the keywords must appear in the results.
The difference between AND, OR is that AND evaluates both conditions must be true for the overall condition to be true. The OR evaluates one condition must be true for the overall condition to be true. In the OR result, if name is John then condition will be true. If any row has the age 22, then it will be true.
In mathematics, the word “or” does not mean exactly one or the other. It means “one or the other or both”. Next consider the truth table for the following statement that uses the connective “and”. The following sentence can be written using the symbol “ ” for the logical connective “and”.
As well as linking words and phrases within sentences, there is no rule against starting a sentence with a conjunction such as or. In fact, beginning a sentence with or can create impact and emphasis.
Or can be a conjunction, an adjective, a noun, an adverb or a preposition.
Some examples of prepositions are words like "in," "at," "on," "of," and "to." Prepositions in English are highly idiomatic.
Therefore, the use of the slash in “and/or” indicates that we mean “and” or also “or.” Let's look at the same example with “and/or” below. I would like a pizza and/or chips for lunch please. The slash means that I will be happy to eat a pizza, OR chips, OR both pizza AND chips for lunch.