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How To Count Number
- 26. • e∈N
• x∈N N
x x'
• x≠e
x∈N
• x,y ∈ N
(x ≠ y) (x' ≠ y')
• ((e ∈ S)∧((x ∈ N) (x' ∈ S))) (S = N)
S N
- 30. 2. x∈N
N x x'
N x
x
x’
x' x
- 32. 4. x,y ∈ N
(x ≠ y) (x' ≠ y')
x y
- 33. 5. ((e ∈ S)∧((x ∈ N) (x' ∈ S))) (S = N)
S N
- 35. • e∈N
• x∈N N
x x'
• x≠e
x∈N
• x,y ∈ N
(x ≠ y) (x' ≠ y')
• ((e ∈ S)∧((x ∈ N) (x' ∈ S))) (S = N)
S N
- 37. •e 0
• e' 1
• e'' 2
• e''' ry
- 48. •e 0
• e' 1
• e'' 2
• e''' ry
- 54. •e
• e' one
• e'' zwei
• e''' ry
- 61. •e 72
• e' 83
• e'' 91
• e''' ry