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Mirrors > Home > ILE Home > Th. List > funconstss | Unicode version |
Description: Two ways of specifying that a function is constant on a subdomain. (Contributed by NM, 8-Mar-2007.) |
Ref | Expression |
---|---|
funconstss |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | funimass4 5224 |
. 2
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2 | funimass3 5283 |
. 2
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3 | ssel2 2940 |
. . . . . 6
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4 | 3 | anim2i 324 |
. . . . 5
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5 | 4 | anassrs 380 |
. . . 4
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6 | funfvex 5192 |
. . . 4
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7 | elsng 3390 |
. . . 4
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8 | 5, 6, 7 | 3syl 17 |
. . 3
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9 | 8 | ralbidva 2322 |
. 2
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10 | 1, 2, 9 | 3bitr3rd 208 |
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 ax-ia2 100 ax-ia3 101 ax-io 630 ax-5 1336 ax-7 1337 ax-gen 1338 ax-ie1 1382 ax-ie2 1383 ax-8 1395 ax-10 1396 ax-11 1397 ax-i12 1398 ax-bndl 1399 ax-4 1400 ax-14 1405 ax-17 1419 ax-i9 1423 ax-ial 1427 ax-i5r 1428 ax-ext 2022 ax-sep 3875 ax-pow 3927 ax-pr 3944 |
This theorem depends on definitions: df-bi 110 df-3an 887 df-tru 1246 df-nf 1350 df-sb 1646 df-eu 1903 df-mo 1904 df-clab 2027 df-cleq 2033 df-clel 2036 df-nfc 2167 df-ral 2311 df-rex 2312 df-v 2559 df-sbc 2765 df-un 2922 df-in 2924 df-ss 2931 df-pw 3361 df-sn 3381 df-pr 3382 df-op 3384 df-uni 3581 df-br 3765 df-opab 3819 df-id 4030 df-xp 4351 df-rel 4352 df-cnv 4353 df-co 4354 df-dm 4355 df-rn 4356 df-res 4357 df-ima 4358 df-iota 4867 df-fun 4904 df-fn 4905 df-fv 4910 |
This theorem is referenced by: fconst3m 5380 |
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