CodePudding user response:

& With the
Circle the

CodePudding user response:

& And the meaning of,

CodePudding user response:

When the input are both low electricity at ordinary times, the output is low level,

CodePudding user response:

OUT=NOT ( (NOT A) AND (NOT B))

CodePudding user response:

Logic gate: and the door

CodePudding user response:

The meaning of and gate,