# Difference between revisions of "Mismatch"

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# ≢ — Tally — or Multiset Not Identical — Keystroke ALT+@ or ALT+SHIFT+2 — Character 8802

## Usage

 Z←L≢R returns a Boolean scalar identical to ~L≡R.
L and R are both arbitrary arrays.
Z is a Boolean scalar whose value is 1 if the two arguments differ in any respect be it depth, rank, shape or value, and 0 otherwise.

## Example

For example, in origin-1

```      ''≢⍬
1
1 2 3≢⍳3
0```

 See Also System Commands System Variables and Functions Operators

 Keyboard A+S ⍪ ≡ ≢ ⍒ ⍋ ⌽ ⍉ ⊖ ⍟ ⍱ ⍲ ⍠ ⌹ Alt ⋄ ¨ ¯ < ≤ ∅ ≥ > ≠ ∨ ∧ × ÷ Sh ~ ! @ # \$ % ^ & * ( ) _ + Key ` 1 2 3 4 5 6 7 8 9 0 - = A+S ⍷ √ ⍨ ⍸ ⍥ ⍣ ⍞ ⍬ ⊣ Alt ? ⍵ ∊ ⍴ § ↑ ↓ ⍳ ○ π ← → ⊢ Sh Q W E R T Y U I O P { } | Key q w e r t y u i o p [ ] \ A+S ∫ ∂ ⌻ ⍢ ⍙ ⍤ ⍫ ⌷ Alt ⍺ ⌈ ⌊ ∞ ∇ ∆ ∘ ‼ ⎕ ⍎ ⍕ Sh A S D F G H J K L : " Key a s d f g h j k l ; ' A+S ⊆ ⊇ ⍡ ⍭ ⊙ Alt ⊂ ⊃ ∩ ∪ ⊥ ⊤ ⍦ ⍝ ⍀ ⌿ Sh Z X C V B N M < > ? Key z x c v b n m , . /
 NARS 2000 LangToolBar ← → + - × ÷ * ⍟ ⌹ ○ ! ? √ | ⌈ ⌊ ⊥ ⊤ ⊣ ⊢ ≡ ≢ < ≤ = ≥ > ≠ ∨ ∧ ⍱ ⍲ ↑ ↓ ⊂ ⊃ ⌷ ⍋ ⍒ ⍳ ∊ ⍸ ⍷ ∪ ∩ ⊆ ⊇ ~ § π .. , ⍪ ⍴ ⌽ ⊖ ⍉ / \ ⌿ ⍀ ⊙ ¨ ⍨ ⍤ ⍣ ⍡ ⍥ ⍦ ⍥ . ∘ ⍠ ‼ ⌻ ∂ ⍞ ⎕ ⍎ ⍕ ⋄ ⍝ ∇ ∆ ⍙ _ ⍺ ⍵ ¯ ⍬ ∞ ∅ Second Row i j k i j k l g p r v x

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