Propositional Logic and Circuits Flashcards

1
Q

Compound Proposition

A

A proposition built from an atomic proposition:
Logic is easy -> Logic is not hard

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2
Q

|=

A
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3
Q

A

Special proposition, which is false under every interpretation

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4
Q

Modus Ponens

A

Direct Proof

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5
Q

Reductio Ad Absurdum

A

Proof by contradiction

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6
Q

Modus Tollens

A

If p implies q, and q is false, then p is false.

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7
Q

Case Analysis

A
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8
Q

Logic Equivalent

A

P ≡ Q
Same truth values under every possible interpretation/ same DNF.

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9
Q

Disjunctive Normal Form

A

The values where the truth table’s result is true.

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10
Q

Equivalence

A

Same output considering same inputs.

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11
Q

A

Reflexive, Transitive, Symmetric

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12
Q

T

A

True for everything.

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13
Q

Sequential Gate

A

Can loop back round in on itself.

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14
Q

Latch

A

A flip/flop circuit
Mostly remains 0, but you can supply something to make it 1.

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15
Q

Two’s Complement

A

Converting a positive binary number to a negative one.

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16
Q

Half Adder
Full Adder

A

Half Adder - The half adder circuit has two inputs: A and B, which add two input digits and generates a carry and a sum.
Full Adder - A full adder takes two binary numbers plus a carry or overflow bit. The output is a sum and another carry bit.

17
Q

Scientific Notation (Standard Form)

A

10^3 = 1000, so 4 × 10^3 = 4000

18
Q

Binary Fractions

19
Q

Positional system

A

Multiply each digit by its place value

20
Q

Floating Point Numbers