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Mirrors > Home > MPE Home > Th. List > Mathboxes > sbcssOLD | Structured version Visualization version Unicode version |
Description: Distribute proper substitution through a subclass relation. This theorem was automatically derived from sbcssgVD 39119. (Contributed by Alan Sare, 22-Jul-2012.) (Proof modification is discouraged.) (New usage is discouraged.) |
Ref | Expression |
---|---|
sbcssOLD |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dfss2 3591 | . . . 4 | |
2 | 1 | sbcbiiOLD 38741 | . . 3 |
3 | sbcalgOLD 38752 | . . . 4 | |
4 | sbcimg 3477 | . . . . . . 7 | |
5 | sbcel2gOLD 38755 | . . . . . . . 8 | |
6 | sbcel2gOLD 38755 | . . . . . . . 8 | |
7 | 5, 6 | imbi12d 334 | . . . . . . 7 |
8 | 4, 7 | bitrd 268 | . . . . . 6 |
9 | 8 | alrimiv 1855 | . . . . 5 |
10 | albi 1746 | . . . . 5 | |
11 | 9, 10 | syl 17 | . . . 4 |
12 | 3, 11 | bitrd 268 | . . 3 |
13 | 2, 12 | bitrd 268 | . 2 |
14 | dfss2 3591 | . 2 | |
15 | 13, 14 | syl6bbr 278 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wb 196 wal 1481 wcel 1990 wsbc 3435 csb 3533 wss 3574 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-v 3202 df-sbc 3436 df-csb 3534 df-in 3581 df-ss 3588 |
This theorem is referenced by: (None) |
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