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Mirrors > Home > MPE Home > Th. List > Mathboxes > cdlemesner | Structured version Visualization version Unicode version |
Description: Part of proof of Lemma E in [Crawley] p. 113. Utility lemma. (Contributed by NM, 13-Nov-2012.) |
Ref | Expression |
---|---|
cdlemesner.l | |
cdlemesner.j | |
cdlemesner.a | |
cdlemesner.h |
Ref | Expression |
---|---|
cdlemesner |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nbrne2 4673 | . . 3 | |
2 | 1 | 3ad2ant3 1084 | . 2 |
3 | 2 | necomd 2849 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wn 3 wi 4 wa 384 w3a 1037 wceq 1483 wcel 1990 wne 2794 class class class wbr 4653 cfv 5888 (class class class)co 6650 cple 15948 cjn 16944 catm 34550 chlt 34637 clh 35270 |
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-3an 1039 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-ne 2795 df-rab 2921 df-v 3202 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-sn 4178 df-pr 4180 df-op 4184 df-br 4654 |
This theorem is referenced by: cdlemeda 35585 |
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