Let S = {0, 1, { 0, {1} } and let T = {0, {∅, {∅} } How many function f : S → T are injective = How many function f : T

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answerhappygod
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Let S = {0, 1, { 0, {1} } and let T = {0, {∅, {∅} } How many function f : S → T are injective = How many function f : T

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Let S = {0, 1, { 0, {1} } and let T = {0, {∅,{∅} }
How many function f : S → T are injective =
How many function f : T → S are surjective =
How many function f : T → S are invertible =
Given each of the following sets in list notation.
S ∪ T =.
S − T =.
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