Category:Preimage of Union under Mapping
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This category contains pages concerning Preimage of Union under Mapping:
Let $S$ and $T$ be sets.
Let $f: S \to T$ be a mapping.
Let $T_1$ and $T_2$ be subsets of $T$.
Then:
- $f^{-1} \sqbrk {T_1 \cup T_2} = f^{-1} \sqbrk {T_1} \cup f^{-1} \sqbrk {T_2}$
This can be expressed in the language and notation of inverse image mappings as:
- $\forall T_1, T_2 \in \powerset T: \map {f^\gets} {T_1 \cup T_2} = \map {f^\gets} {T_1} \cup \map {f^\gets} {T_2}$
Pages in category "Preimage of Union under Mapping"
The following 5 pages are in this category, out of 5 total.