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| Mirrors > Home > ILE Home > Th. List > funeqd | Unicode version | ||
| Description: Equality deduction for the function predicate. (Contributed by NM, 23-Feb-2013.) |
| Ref | Expression |
|---|---|
| funeqd.1 |
|
| Ref | Expression |
|---|---|
| funeqd |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | funeqd.1 |
. 2
| |
| 2 | funeq 5397 |
. 2
| |
| 3 | 1, 2 | syl 14 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 |
| This proof depends on definitions: df-bi 117 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-in 3226 df-ss 3233 df-br 4131 df-opab 4193 df-rel 4781 df-cnv 4782 df-co 4783 df-fun 5379 |
| This theorem is used by: funopg 5411 funsng 5427 funcnvuni 5450 f1eq1 5593 f1ssf1 5671 funopsn 5891 frecuzrdgtclt 10871 fundm2domnop0 11314 shftfn 11603 ennnfonelemfun 13357 ennnfonelemf1 13358 isstruct2im 13411 isstruct2r 13412 structfung 13418 setsfun 13436 setsfun0 13437 strslfv3 13447 uhgrspansubgrlem 16615 p1evtxdeqfilem 16650 istrl 16724 trlsegvdeglem2 16800 trlsegvdeglem3 16801 funmptd 16929 |
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