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Mirrors > Home > ILE Home > Th. List > tfrlemisucfn | Unicode version |
Description: We can extend an acceptable function by one element to produce a function. Lemma for tfrlemi1 5969. (Contributed by Jim Kingdon, 2-Jul-2019.) |
Ref | Expression |
---|---|
tfrlemisucfn.1 |
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tfrlemisucfn.2 |
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tfrlemisucfn.3 |
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tfrlemisucfn.4 |
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tfrlemisucfn.5 |
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Ref | Expression |
---|---|
tfrlemisucfn |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | vex 2604 |
. . 3
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2 | 1 | a1i 9 |
. 2
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3 | tfrlemisucfn.2 |
. . . 4
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4 | 3 | tfrlem3-2d 5951 |
. . 3
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5 | 4 | simprd 112 |
. 2
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6 | tfrlemisucfn.4 |
. 2
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7 | eqid 2081 |
. 2
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8 | df-suc 4126 |
. 2
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9 | elirrv 4291 |
. . 3
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10 | 9 | a1i 9 |
. 2
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11 | 2, 5, 6, 7, 8, 10 | fnunsn 5026 |
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 104 ax-ia2 105 ax-ia3 106 ax-in1 576 ax-in2 577 ax-io 662 ax-5 1376 ax-7 1377 ax-gen 1378 ax-ie1 1422 ax-ie2 1423 ax-8 1435 ax-10 1436 ax-11 1437 ax-i12 1438 ax-bndl 1439 ax-4 1440 ax-14 1445 ax-17 1459 ax-i9 1463 ax-ial 1467 ax-i5r 1468 ax-ext 2063 ax-sep 3896 ax-pow 3948 ax-pr 3964 ax-setind 4280 |
This theorem depends on definitions: df-bi 115 df-3an 921 df-tru 1287 df-fal 1290 df-nf 1390 df-sb 1686 df-eu 1944 df-mo 1945 df-clab 2068 df-cleq 2074 df-clel 2077 df-nfc 2208 df-ne 2246 df-ral 2353 df-rex 2354 df-v 2603 df-dif 2975 df-un 2977 df-in 2979 df-ss 2986 df-nul 3252 df-pw 3384 df-sn 3404 df-pr 3405 df-op 3407 df-uni 3602 df-br 3786 df-opab 3840 df-id 4048 df-suc 4126 df-xp 4369 df-rel 4370 df-cnv 4371 df-co 4372 df-dm 4373 df-iota 4887 df-fun 4924 df-fn 4925 df-fv 4930 |
This theorem is referenced by: tfrlemisucaccv 5962 tfrlemibfn 5965 |
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