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| Mirrors > Home > ILE Home > Th. List > elmapi | Unicode version | ||
| Description: A mapping is a function, forward direction only with superfluous antecedent removed. (Contributed by Stefan O'Rear, 10-Oct-2014.) |
| Ref | Expression |
|---|---|
| elmapi |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elmapex 6943 |
. . 3
| |
| 2 | elmapg 6935 |
. . 3
| |
| 3 | 1, 2 | syl 14 |
. 2
|
| 4 | 3 | ibi 176 |
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-in1 623 ax-in2 624 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-14 2212 ax-ext 2220 ax-sep 4249 ax-pow 4311 ax-pr 4346 ax-un 4578 ax-setind 4684 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-fal 1408 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-ral 2533 df-rex 2534 df-v 2823 df-sbc 3052 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-br 4131 df-opab 4193 df-id 4438 df-xp 4780 df-rel 4781 df-cnv 4782 df-co 4783 df-dm 4784 df-rn 4785 df-iota 5337 df-fun 5379 df-fn 5380 df-f 5381 df-fv 5385 df-ov 6088 df-oprab 6089 df-mpo 6090 df-map 6924 |
| This theorem is used by: mapfset 6945 elmapfn 6952 elmapfun 6953 elmapssres 6954 mapsspm 6963 map0b 6968 mapss 6973 mapsncnv 6977 mapen 7146 mapxpen 7148 mapunen 7151 2omap 7318 nninff 7462 ismkvnex 7495 nninfwlpoim 7519 nninfinfwlpo 7520 finacn 7560 acnccim 7638 psrbagf 15054 psrbagfi 15059 mplsubgfilemcl 15090 plycn 15863 dvply2g 15867 bj-charfunr 16836 nninfalllem1 17051 nninfall 17052 nninfsellemdc 17053 nninfsellemqall 17058 nninfomnilem 17061 isomninnlem 17079 trilpo 17092 iswomninnlem 17099 iswomni0 17101 ismkvnnlem 17102 redcwlpo 17105 nconstwlpo 17116 neapmkv 17118 |
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