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Mirrors > Home > MPE Home > Th. List > fvmptss2 | Unicode version |
Description: A mapping always evaluates to a subset of the substituted expression in the mapping, even if this is a proper class, or we are out of the domain. (Contributed by Mario Carneiro, 13-Feb-2015.) |
Ref | Expression |
---|---|
fvmptn.1 | |
fvmptn.2 |
Ref | Expression |
---|---|
fvmptss2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fvmptn.1 | . . . . 5 | |
2 | 1 | eleq1d 2526 | . . . 4 |
3 | fvmptn.2 | . . . . 5 | |
4 | 3 | dmmpt 5507 | . . . 4 |
5 | 2, 4 | elrab2 3259 | . . 3 |
6 | 1, 3 | fvmptg 5954 | . . . 4 |
7 | eqimss 3555 | . . . 4 | |
8 | 6, 7 | syl 16 | . . 3 |
9 | 5, 8 | sylbi 195 | . 2 |
10 | ndmfv 5895 | . . 3 | |
11 | 0ss 3814 | . . 3 | |
12 | 10, 11 | syl6eqss 3553 | . 2 |
13 | 9, 12 | pm2.61i 164 | 1 |
Colors of variables: wff setvar class |
Syntax hints: -. wn 3 -> wi 4
/\ wa 369 = wceq 1395 e. wcel 1818
cvv 3109
C_ wss 3475 c0 3784 e. cmpt 4510 dom cdm 5004
` cfv 5593 |
This theorem is referenced by: cvmsi 28710 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1618 ax-4 1631 ax-5 1704 ax-6 1747 ax-7 1790 ax-8 1820 ax-9 1822 ax-10 1837 ax-11 1842 ax-12 1854 ax-13 1999 ax-ext 2435 ax-sep 4573 ax-nul 4581 ax-pow 4630 ax-pr 4691 |
This theorem depends on definitions: df-bi 185 df-or 370 df-an 371 df-3an 975 df-tru 1398 df-ex 1613 df-nf 1617 df-sb 1740 df-eu 2286 df-mo 2287 df-clab 2443 df-cleq 2449 df-clel 2452 df-nfc 2607 df-ne 2654 df-ral 2812 df-rex 2813 df-rab 2816 df-v 3111 df-sbc 3328 df-dif 3478 df-un 3480 df-in 3482 df-ss 3489 df-nul 3785 df-if 3942 df-sn 4030 df-pr 4032 df-op 4036 df-uni 4250 df-br 4453 df-opab 4511 df-mpt 4512 df-id 4800 df-xp 5010 df-rel 5011 df-cnv 5012 df-co 5013 df-dm 5014 df-rn 5015 df-res 5016 df-ima 5017 df-iota 5556 df-fun 5595 df-fv 5601 |
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