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Mirrors > Home > ILE Home > Th. List > ffun | Unicode version |
Description: A mapping is a function. (Contributed by NM, 3-Aug-1994.) |
Ref | Expression |
---|---|
ffun |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ffn 4989 |
. 2
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2 | fnfun 4939 |
. 2
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3 | 1, 2 | syl 14 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 99 |
This theorem depends on definitions: df-bi 110 df-fn 4848 df-f 4849 |
This theorem is referenced by: funssxp 5003 f00 5024 fofun 5050 fun11iun 5090 fimacnv 5239 dff3im 5255 fmptco 5273 fliftf 5382 smores2 5850 nn0supp 8010 |
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