Definition:Combinable/Mappings
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Definition
Let:
- $(1): \quad f_1: S_1 \to T_1$ be a mapping from $S_1$ to $T_1$
- $(2): \quad f_2: S_2 \to T_2$ be a mapping from $S_2$ to $T_2$
If $f_1$ and $f_2$ agree on $S_1 \cap S_2$, they are said to be combinable.
Sources
- 1967: George McCarty: Topology: An Introduction with Application to Topological Groups ... (previous) ... (next): Chapter $\text{I}$: Sets and Functions: Restrictions and Extensions