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Mirrors > Home > ILE Home > Th. List > funoprab | Unicode version |
Description: "At most one" is a sufficient condition for an operation class abstraction to be a function. (Contributed by NM, 17-Mar-1995.) |
Ref | Expression |
---|---|
funoprab.1 |
Ref | Expression |
---|---|
funoprab |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | funoprab.1 | . . 3 | |
2 | 1 | gen2 1438 | . 2 |
3 | funoprabg 5941 | . 2 | |
4 | 2, 3 | ax-mp 5 | 1 |
Colors of variables: wff set class |
Syntax hints: wal 1341 wmo 2015 wfun 5182 coprab 5843 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 699 ax-5 1435 ax-7 1436 ax-gen 1437 ax-ie1 1481 ax-ie2 1482 ax-8 1492 ax-10 1493 ax-11 1494 ax-i12 1495 ax-bndl 1497 ax-4 1498 ax-17 1514 ax-i9 1518 ax-ial 1522 ax-i5r 1523 ax-14 2139 ax-ext 2147 ax-sep 4100 ax-pow 4153 ax-pr 4187 |
This theorem depends on definitions: df-bi 116 df-3an 970 df-tru 1346 df-nf 1449 df-sb 1751 df-eu 2017 df-mo 2018 df-clab 2152 df-cleq 2158 df-clel 2161 df-nfc 2297 df-ral 2449 df-rex 2450 df-v 2728 df-un 3120 df-in 3122 df-ss 3129 df-pw 3561 df-sn 3582 df-pr 3583 df-op 3585 df-br 3983 df-opab 4044 df-id 4271 df-xp 4610 df-rel 4611 df-cnv 4612 df-co 4613 df-fun 5190 df-oprab 5846 |
This theorem is referenced by: mpofun 5944 ovidig 5959 ovigg 5962 oprabex 6096 th3qcor 6605 axaddf 7809 axmulf 7810 |
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