Start Learning Logic 2 | Disjunction, Tautology and Logical Equivalence 

It's only been 2 videos, and you are filling in gasps for my math brain. Thanks for putting this together.

Thanks! Don´t you ever close down this channel! 🙂

Very well explained! Keep up the good work :)

شكرا و جزاك الله خيرا

Logical equivalence symbol should be = with one extra line, the next video says that represents a tautology from the if and only if statement

Should also mention how you can build the other logical operations with only negation and conjunction. For example, the operator "or" can be defined : A or B = not( not A and not B ). Another example is the XOR operator, which can be built with "and" and "or" : A xor B = ( A or B ) and not ( A and B ).

Thank you, Sir.

Very well explained

Thanks

Great Video sir.

Question: @1:40 we see a circuit that is used as an analogy to the truth table on the right. The circuit is supposed to represent A or B, just like the truth table shown. Only problem is that in the circuit, it can ONLY be A or B, but it can't be both. This is in contrast to the truth table where A and B can be true so it isn't an exact analogy. Did I get this right or did I miss something?

Awesome!

Assume explanation