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Mirrors > Home > MPE Home > Th. List > fnexALT | Unicode version |
Description: Alternate proof of fnex 6139, derived using the Axiom of Replacement in the form of funimaexg 5670. This version uses ax-pow 4630 and ax-un 6592, whereas fnex 6139 does not. (Contributed by NM, 14-Aug-1994.) (Proof modification is discouraged.) (New usage is discouraged.) |
Ref | Expression |
---|---|
fnexALT |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fnrel 5684 | . . . 4 | |
2 | relssdmrn 5533 | . . . 4 | |
3 | 1, 2 | syl 16 | . . 3 |
4 | 3 | adantr 465 | . 2 |
5 | fndm 5685 | . . . . 5 | |
6 | 5 | eleq1d 2526 | . . . 4 |
7 | 6 | biimpar 485 | . . 3 |
8 | fnfun 5683 | . . . . 5 | |
9 | funimaexg 5670 | . . . . 5 | |
10 | 8, 9 | sylan 471 | . . . 4 |
11 | imadmrn 5352 | . . . . . . 7 | |
12 | 5 | imaeq2d 5342 | . . . . . . 7 |
13 | 11, 12 | syl5eqr 2512 | . . . . . 6 |
14 | 13 | eleq1d 2526 | . . . . 5 |
15 | 14 | biimpar 485 | . . . 4 |
16 | 10, 15 | syldan 470 | . . 3 |
17 | xpexg 6602 | . . 3 | |
18 | 7, 16, 17 | syl2anc 661 | . 2 |
19 | ssexg 4598 | . 2 | |
20 | 4, 18, 19 | syl2anc 661 | 1 |
Colors of variables: wff setvar class |
Syntax hints: -> wi 4 /\ wa 369
e. wcel 1818 cvv 3109
C_ wss 3475 X. cxp 5002 dom cdm 5004
ran crn 5005 " cima 5007 Rel wrel 5009
Fun wfun 5587
Fn wfn 5588 |
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-rep 4563 ax-sep 4573 ax-nul 4581 ax-pow 4630 ax-pr 4691 ax-un 6592 |
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-dif 3478 df-un 3480 df-in 3482 df-ss 3489 df-nul 3785 df-if 3942 df-pw 4014 df-sn 4030 df-pr 4032 df-op 4036 df-uni 4250 df-br 4453 df-opab 4511 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-fun 5595 df-fn 5596 |
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