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Mirrors > Home > MPE Home > Th. List > xpriindi | Unicode version |
Description: Distributive law for Cartesian product over relativized indexed intersection. (Contributed by Mario Carneiro, 21-Mar-2015.) |
Ref | Expression |
---|---|
xpriindi |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | iineq1 4345 | . . . . . . 7 | |
2 | 0iin 4388 | . . . . . . 7 | |
3 | 1, 2 | syl6eq 2514 | . . . . . 6 |
4 | 3 | ineq2d 3699 | . . . . 5 |
5 | inv1 3812 | . . . . 5 | |
6 | 4, 5 | syl6eq 2514 | . . . 4 |
7 | 6 | xpeq2d 5028 | . . 3 |
8 | iineq1 4345 | . . . . . 6 | |
9 | 0iin 4388 | . . . . . 6 | |
10 | 8, 9 | syl6eq 2514 | . . . . 5 |
11 | 10 | ineq2d 3699 | . . . 4 |
12 | inv1 3812 | . . . 4 | |
13 | 11, 12 | syl6eq 2514 | . . 3 |
14 | 7, 13 | eqtr4d 2501 | . 2 |
15 | xpindi 5141 | . . 3 | |
16 | xpiindi 5143 | . . . 4 | |
17 | 16 | ineq2d 3699 | . . 3 |
18 | 15, 17 | syl5eq 2510 | . 2 |
19 | 14, 18 | pm2.61ine 2770 | 1 |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1395 =/= wne 2652
cvv 3109
i^i cin 3474 c0 3784 |^|_ ciin 4331 X. cxp 5002 |
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-9 1822 ax-10 1837 ax-11 1842 ax-12 1854 ax-13 1999 ax-ext 2435 ax-sep 4573 ax-nul 4581 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-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-sn 4030 df-pr 4032 df-op 4036 df-iin 4333 df-opab 4511 df-xp 5010 df-rel 5011 |
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